This Leave-In Spray Makes Hair Grow (Awaken Follicles in 48 Hours) - The Senior Wellness Podcast

Brief Summary

This video presents a homemade leave-on hair spray designed to improve hair thickness and regrowth. It details the science behind why a leave-on spray is more effective than rinse-off products, and explains the function of each of the five ingredients: onion, rice, rosemary, cloves, and coffee. The recipe and application method are provided, along with a discussion of expected results over a 12-week period.

  • The leave-on spray format allows for extended contact between active ingredients and the scalp, leading to better penetration and effect on hair follicles.
  • Key ingredients like onion, rosemary, and cloves address DHT production, stimulate hair growth signals, and reduce scalp inflammation, respectively.
  • Consistent, twice-daily application along with a 10-minute scalp massage is crucial for optimal results.

Introduction: The Power of a Leave-On Hair Treatment

Dr. Hinohara introduces a hair spray preparation with five ingredients designed to improve hair health. He shares a story about a patient who noticed a difference in her hair's fullness just two days after the first application, emphasizing the rapid effect of the preparation. The key is the spray format, which allows the ingredients to remain on the scalp for hours, unlike shampoos or oils that are rinsed away quickly. He promises to reveal the most underestimated ingredient, which significantly speeds up the process.

The Principle Behind the Preparation: Contact Time is Key

The effectiveness of the preparation lies in its leave-on nature, which allows prolonged contact between the active compounds and the scalp tissue. Unlike rinse-off treatments that only interact with the scalp for a short time, this spray penetrates the outer layers of the skin and acts on the biological mechanisms of the hair follicles for hours. This extended contact time is the reason why the spray format yields faster results compared to rinse-off treatments.

Ingredient 1: Onion - DHT Reduction and Keratin Support

Onion is a key ingredient due to its quercetin content, which inhibits 5-alpha reductase, the enzyme that converts testosterone to DHT. DHT causes follicle miniaturization, leading to hair thinning. By reducing DHT production at the follicle level, quercetin helps maintain follicle health. Additionally, onion provides sulfur compounds, essential for keratin synthesis, which results in thicker hair shafts. This explains the immediate fullness felt by the patient, as the existing hair becomes structurally denser.

Ingredient 2: Uncooked White Rice - Follicle Support and UV Protection

Uncooked white rice contains inositol and phytic acid, which act as tyrosinase inhibitors relevant to gray hair treatment. More importantly, inositol supports the cell membrane integrity of follicle cells, improving nutrient transport and waste removal. Rice also contains PABA (para-aminobenzoic acid), which provides UV protection, reducing oxidative damage to the follicle environment. The Yao women of China, known for their long, dark hair, have traditionally used rice water for its beneficial effects on hair health.

Ingredient 3: Rosemary - Activating Hair Growth

Rosemary contains carnosic acid and rosmarinic acid. Carnosic acid activates Wnt signaling in the dermal papilla cells, which triggers the hair follicle to enter the active growth phase. This provides a direct chemical signal for resting follicles to initiate growth. Rosemary's effectiveness is due to this Wnt signaling activation and its circulation-stimulating effect, both of which operate continuously in a leave-on spray.

Ingredient 4: Whole Cloves - The 48-Hour Effect

Whole cloves contain eugenol, which has anti-inflammatory, vasodilatory, and anti-fungal properties. Eugenol inhibits NF-κB, reducing chronic low-level inflammation in the scalp that disrupts follicle cycles. It also dilates capillaries, increasing blood flow to the follicles, delivering more oxygen and nutrients. Additionally, eugenol's anti-fungal properties address scalp fungal activity, which can interfere with follicle biology. The vasodilation effect is immediate, leading to structural improvements in the hair shaft within the first day, explaining the 48-hour effect.

Ingredient 5: Coffee - DHT Sensitivity Reduction and Circulation Boost

Coffee contains caffeine, which reduces the sensitivity of the hair follicle to DHT, minimizing its disruptive effects. Caffeine also stimulates scalp circulation through a different mechanism than eugenol, enhancing the follicle's blood supply. Additionally, coffee helps mask the strong scent of onion in the preparation, making it more palatable for regular use.

Preparation Method: Step-by-Step Guide

To prepare the spray, combine chopped onion, unwashed rice, rosemary, and whole cloves in a saucepan with one cup of water. Bring to a single boil and then remove from heat, covering the saucepan to trap the aromatic oils. Allow it to cool completely before straining the liquid. Add one teaspoon of coffee to the cooled liquid and stir until dissolved. Pour the mixture into a clean spray bottle and optionally add one teaspoon of melted coconut oil. Store the preparation in the refrigerator for up to 10 days.

Application and Expected Results: A 12-Week Journey

Apply the spray twice daily, morning and evening, focusing on areas of thinning. Massage the preparation into the scalp for 10 minutes to distribute it evenly and stimulate circulation. Do not rinse. Consistent application is key, and results can be observed over 12 weeks. The presenter shares the experience of a patient named Yuki, who felt fullness at the root by day two, reduced shedding by week two, new fine hairs at week four, and noticeable density change by week eight.

Action Steps and Conclusion: Start Today

The presenter addresses concerns about the time commitment, emphasizing that the application process can be integrated into existing hair care routines. The three action steps are: make the preparation today, apply the first application tonight, and take photographs to track progress at 2, 4, and 8-week intervals. The key is consistency and recognizing that the biological changes in the follicle environment begin from the first application.

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Transcript

Full transcript of “This Leave-In Spray Makes Hair Grow (Awaken Follicles in 48 Hours) - The Senior Wellness Podcast”. Click a timestamp to open the video at that moment. Need another video? Use the YouTube transcript generator.

0:00 I want to tell you about the moment a patient of mine, a woman named Yuki, described something to me that I have since heard from many patients who begin this protocol. She said that on the second morning after her first application, she [snorts] ran her fingers through her hair while she was still half asleep before she had even opened her eyes, and something felt different. Not dramatically different, not a wig on her head overnight, but different from the morning before, a fullness at the root, a resistance to the fingers that her hair had not offered in years, a feeling of density rather than thinness. She said she almost did not trust it. She thought she might be imagining it, but she was not imagining it, and I am going to explain

0:45 to you exactly what had happened in the 48 hours since her first application at the biological level so that you understand precisely why this preparation can produce something you can feel within 2 days, even before you can see it in the mirror. My name is Dr. Shigeaki Hinohara. I have practiced medicine in Japan for more than 60 years. I am 97 years old. Today, I am going to give you a spray preparation, five ingredients made at home, applied directly to the scalp and left on, and I am going to explain why the spray format, specifically, is the reason this produces results that a shampoo or an oil applied and rinsed away cannot produce at the same speed or with the

1:31 same consistency. Stay with me through this entire video because at the end, I am going to tell you the one ingredient in this preparation that most people underestimate, that most people consider to be simply a flavoring agent with no therapeutic significance, and that is in fact the ingredient responsible for the 48-hour effect. If you leave it out, the preparation still works. It simply works more slowly. You need to hear this. Type the number 16 in the comments right now if you are ready to understand why your hair has been responding to products the way it has been and how to change that starting today. I read every comment. Now, let me explain the principle behind this preparation before I tell you what

2:17 is in it because the principle is the thing that makes every detail of the recipe make sense. Your hair follicle is a biological structure that lives inside the skin. It is fed by blood. It responds to chemical signals, and it operates in an environment, the scalp tissue immediately surrounding it, that can either support its function or undermine it. When the environment is correct, the follicle produces hair continuously and fully. When the environment is compromised, the follicle underperforms, rests, or stops producing altogether. Most hair treatments, shampoos, serums, and even topical oils applied and rinsed, interact with the follicle environment for 60 seconds, 90

3:03 seconds at most. The active compounds in those products arrive, make brief contact with the scalp surface, and are gone before they can penetrate to the follicle level. The follicle environment is not meaningfully changed. The treatment you paid for never reached the tissue it was supposed to treat. A leave-on spray is different in a fundamental way. When you spray an active preparation onto the scalp and leave it there, those compounds have hours of contact time with the scalp tissue. The active ingredients do not evaporate in 60 seconds. They are present against the scalp surface for the entire time between application and the next wash. They penetrate progressively through the outer layers of the skin. They reach the follicle opening. They begin acting on the

3:50 biological mechanisms that determine follicle behavior, not for 1 minute, for hours. This is why the spray format produces results that rinse-off treatments cannot produce at the same speed. The contact time is the mechanism. Everything else follows from that. Now, let me tell you what the five ingredients are and what each one does at the follicle level. The first ingredient is onion, one medium red or white onion chopped into small pieces. I have discussed onion extensively in previous videos, and I will not repeat the full explanation here, but I will be precise about what matters in this preparation. Onion contains quercetin, which inhibits 5-alpha reductase, the enzyme that converts testosterone to DHT

4:36 in the scalp tissue. DHT is the hormone that binds to follicle receptors and causes miniaturization, the progressive shrinking of the follicle that produces finer hair with each successive cycle until the follicle produces nothing. When quercetin is present in the scalp tissue through hours of contact from the leave-on spray, it reduces DHT production at the follicle level continuously, not for 60 seconds, continuously for as long as the spray remains on the scalp. The landmark study I have cited in other videos found that participants applying onion extract to the scalp twice daily for 2 months showed a regrowth rate of 86.9%. Twice daily, this preparation follows

5:22 that protocol precisely. The twice-daily application maintains a consistent quercetin concentration in the scalp tissue across the full 24-hour cycle. Onion also contributes sulfur compounds that provide the raw material for keratin synthesis, the structural protein of the hair shaft. When sulfur is available at the follicle level in adequate concentration, the follicle produces a thicker shaft. This is the mechanism behind what Yuki felt on the second morning, not new hair growing. The existing hair shafts produced by the follicles receiving sulfur support becoming structurally denser at the root level, thicker at the base where the follicle meets the scalp. That is the fullness she felt before she could see

6:07 any change. The second ingredient is uncooked white rice, 1 Tbsp of whole unwashed rice. Do not wash the rice before using it. The outer layer of the rice grain contains the highest concentration of the active compounds. Washing removes them. Rice contains inositol and phytic acid, which are natural tyrosinase inhibitors. Tyrosinase is the enzyme responsible for producing melanin, and its inhibition is relevant to gray hair treatment, but in the context of hair growth, its more important role is different. Inositol has been shown in dermatological research to directly support the cell membrane integrity of the follicle cells, improving the efficiency of nutrient transport into

6:55 and waste removal from the follicle tissue. A follicle with better cellular membrane function is a follicle that uses the nutrients reaching it more efficiently. This amplifies the effect of every other ingredient in the preparation. Rice also contains a compound called PABA, para-aminobenzoic acid, which absorbs ultraviolet radiation and reduces the UV-driven oxidative damage to the follicle environment that accumulates across decades of sun exposure. In a leave-on spray applied daily, the rice-derived PBA provides a low but consistent level of UV protection at the scalp surface. The women of the Yao ethnic minority in southern China are renowned for hair that reaches floor length and remains

7:41 dark into their 80s. Rice water, specifically the water from soaked or boiled rice, has been a central element of their hair care practice for generations. This was not superstition. It was, as we now understand, the consistent daily delivery of inositol, ferulic acid, and PABA to the scalp and follicle in a leave-on format. The modern research has caught up with what those women knew empirically for centuries. The third ingredient is rosemary, 1 Tbsp of fresh or dried rosemary leaves. I have described rosemary's role in hair growth in previous videos, and here I want to focus on the specific mechanism most relevant to the spray format. Rosemary contains carnosic acid and rosmarinic

8:27 acid. Carnosic acid activates Wnt signaling in the dermal papilla cells, which is one of the primary molecular triggers for the hair follicle entering the active growth phase. When carnosic acid is delivered to the dermal papilla in adequate concentration, resting follicles receive a direct chemical signal to initiate growth. This is not a general supportive effect. It is a specific activation signal. The research comparing rosemary to minoxidil found that the primary mechanism of rosemary's effectiveness was this Wnt signaling activation combined with the circulation stimulating effect of rosemary's aromatic compounds. In a leave-on spray, both of these mechanisms operate

9:13 continuously across the hours of contact time. The Wnt signal is being sent to the dermal papilla, not for the 30 seconds a shampoo might leave the rosemary on the scalp, but for the full duration between application and the next wash. The fourth ingredient is whole cloves, 10 whole cloves, not ground. This is the ingredient I told you I would describe at the end, and it is the one most people do not understand. Do not use ground cloves. The grinding of the clove releases the volatile oils immediately into the air. When you then boil the ground cloves, those oils evaporate rather than extracting into the water. Whole cloves boiled in water allow the oils to release gradually and remain in the

9:59 infusion. Cloves contain eugenol as their primary active compound. Eugenol has three properties that are directly relevant to hair growth that are rarely discussed together. First, eugenol is one of the most potent natural anti-inflammatory agents available in any kitchen ingredient. It inhibits NF-κB, the primary molecular switch of the inflammatory response, through a mechanism that has been documented in multiple published studies. In the scalp, chronic low-level inflammation is one of the most common and least discussed causes of follicle cycle disruption. It keeps follicles in the resting phase and prevents the re-entry into growth. Eugenol's NF-κB inhibition addresses this directly.

10:45 Second, eugenol has a pronounced vasodilatory effect. When applied to the skin, the aromatic compounds in clove oil cause the capillaries beneath the surface to dilate, increasing blood flow to the tissue. In the scalp, this means more blood reaching the follicle, delivering more oxygen, more nutrients, and more of the chemical signals that support the growth phase. This is the mechanism responsible for the warm tingling sensation many people notice within minutes of applying a preparation that contains cloves. It is not irritation, it is capillary dilation, blood rushing to places it had been reaching in diminished quantities. Third, eugenol has documented anti-fungal properties. Scalp fungal

11:31 activity, which is far more common in people over 60 than is generally appreciated, disrupts the follicle environment without causing obvious symptoms. No dramatic dandruff or visible flaking, just a persistent low-level interference with follicle biology. The anti-fungal action of eugenol, delivered to the scalp through hours of leave-on contact, addresses this silent disrupter consistently. This is why I said the cloves produce the 48-hour effect. The vasodilation is immediate. Within minutes of the first application, capillaries in the scalp are delivering more blood to the follicles than they were before. The follicle cells receive more oxygen. They produce more rapidly. A structural improvement in the hair shaft at the

12:18 root level begins within the first day of consistent twice-daily application. This is what Yuki felt on the second morning. The fifth ingredient is coffee. One teaspoon of instant coffee or ground coffee, added after boiling and cooling, not boiled with the other ingredients. I have described caffeine's role in the scalp in previous videos. Topically applied caffeine reduces the sensitivity of the follicle to DHT, not by reducing DHT production as quercetin does, but by reducing the degree to which DHT disrupts follicle function even when it is present. A study published in dermatology journals on topical caffeine and hair follicle biology found that caffeine penetrates the follicle

13:04 structure and interacts with the mechanisms governing the hair growth cycle. It reduces DHT-driven disruption at the receptor level. Coffee also independently stimulates scalp circulation through a mechanism distinct from the eugenol vasodilation, two [clears throat] separate circulatory stimulation pathways in the same preparation. The follicle's blood supply is being enhanced by two ingredients acting through different mechanisms simultaneously. And practically, the coffee in the preparation masks the strong scent of the onion almost completely. The combined preparation smells like coffee with a herbal undertone. This is significant because it is one of the primary practical barriers that prevents people from

13:50 continuing the onion-based protocols that have the strongest evidence base. The smell barrier is removed. Now, let me give you the exact preparation method. Into a medium saucepan, place the chopped onion, the unwashed rice, the rosemary, and the whole cloves. Add one cup of water. Bring the water to a single boil, meaning the moment it reaches a full rolling boil, remove it from the heat immediately. Do not continue boiling. A single boil extracts the active compounds from all four ingredients while preserving the most heat-sensitive of them, the carnosic acid from the rosemary and the quercetin from the onion. Continued boiling at high temperature degrades both of these compounds significantly. Once removed

14:36 from heat, cover the saucepan with a lid. Leave it covered until it cools completely to room temperature. This is not optional. The covering traps the volatile aromatic oils from the rosemary and clove in the preparation as they condense back into the liquid during cooling. Uncovered cooling loses a significant portion of these compounds as steam. Cover completely and leave for as long as it takes to reach room temperature. Do not rush this with cold water or refrigeration. Let it cool naturally. When fully cooled, strain the preparation through a fine mesh strainer or clean cloth, pressing the plant material firmly to extract all the liquid. Discard the spent ingredients. To the strained liquid, now at room temperature, add one teaspoon of instant

15:24 coffee or ground coffee and stir until fully dissolved. The coffee is added after cooling specifically because boiling destroys a significant portion of caffeine's topically active compounds. Pour the completed preparation into a clean spray bottle. If you have coconut oil available, add one teaspoon of melted coconut oil at this point and shake vigorously before each use. The coconut oil prevents the mild drying effect that the water-based spray can produce on the hair shaft and adds the lauric acid that supports scalp barrier integrity. This addition is beneficial, but optional. The preparation is effective without it. Store in the refrigerator. The preparation remains active and safe for up to 10 days when

16:10 refrigerated. After 10 days, prepare a fresh batch. Do not use a preparation older than 10 days. The quercetin in the onion extract degrades progressively and the fresh preparation has the highest concentration of all active compounds. To apply twice daily, morning and evening, remove from the refrigerator and allow to reach room temperature before the morning application or apply cool if you prefer. Part the hair in sections. Spray directly onto the scalp, focusing on the areas of thinning, the hairline, the part line, and the crown. You want the preparation on the skin at the follicle openings, not simply on the hair strands. Aim between 15 and 20

16:56 sprays per application to achieve thorough scalp coverage. After spraying, use your fingertips to massage the preparation into the scalp for a full 10 minutes. This is the most important step and it is non-negotiable. The massage has three functions. It distributes the preparation evenly across the scalp. It mechanically drives the active compounds through the outer skin layer toward the follicle. And it produces independent circulatory stimulation through physical pressure on the capillary network. 10 minutes of firm circular massage is a treatment in itself. Combined with the active compounds being driven into the tissue, it is the delivery mechanism that determines how much of the preparation's potential is actually

17:42 realized. After massage, comb through the hair to distribute any residue along the length. Leave the preparation on. Do not rinse. The leave-on period is the entire mechanism of this spray's superiority over rinse-off products. You are not rinsing away the active compounds. You are allowing them to work for the full time between applications. Apply twice per day, every day, for a minimum of 4 weeks before drawing conclusions. After 4 weeks, many people continue indefinitely because they observe the preparation is working and have no reason to stop. The preparation costs less per month than a single commercial hair product and delivers active compounds to the follicle for hours per day rather than seconds. I

18:30 want to tell you about Yuki's experience across the full 12 weeks because the progression is instructive. At day two, she felt the fullness at the root. This was the sulfur thickening the existing shaft and the eugenol-driven vasodilation delivering more blood to the follicle. At week two, the shedding during her morning brush had reduced by what she estimated was more than half. The quercetin was holding follicles in the growth phase that had been entering the resting phase prematurely. Less shedding is always the first visible signal. At week four, she sent me photographs. At the temples, where thinning had been progressing for 4 years, new fine hairs were growing. Not long enough to add coverage from a distance, but present, coming from

19:17 follicles that had been producing nothing. At week eight, the photographs were unambiguous. The hairline at the temples had filled in. The part line had narrowed. She described looking at her reflection and not adjusting her position to avoid seeing the thinning she had been managing around for years. At week 12, she came to the clinic. I examined her scalp. The areas of the crown that had been producing only fine vellus hairs were producing terminal hairs, longer and pigmented. The preparation had addressed the follicle environment thoroughly enough that dormant follicles suppressed by DHT, by inflammation, by poor circulation, by insufficient sulfur, and scalp nutrients

20:03 had woken up and begun producing again. Before I give you your action steps, I want to address the thing I hear most often when I describe twice daily application. People tell me they cannot commit to morning and evening applications. That it is too many steps. That their morning is already too full. The morning application takes 3 minutes. Spray, 10-minute massage while your hair is drying. This is not additional time. This is time you are already spending on your hair in the morning. It is simply different. The evening application is [clears throat] the same. 3 minutes of spraying and 10 minutes of massage while you are reading or watching television or before you sleep. The time is not the obstacle. The obstacle is the belief

20:50 that something this simple cannot be producing meaningful biological change in the follicle. I understand that belief. I have also watched patient after patient prove it wrong. Here are your three steps for this week. Step one. Make the preparation today. One chopped onion, one tablespoon of unwashed rice, one tablespoon of rosemary, 10 whole cloves, one cup of water. Bring to a single boil, cover, cool completely. Strain, add one teaspoon of coffee, bottle in a spray bottle. Refrigerate. Your first batch is ready in 30 minutes of active preparation plus cooling time. Step two. Tonight, apply your first application before sleep. Part the hair, spray onto

21:36 the scalp. Massage for 10 minutes. Leave on, sleep. Tomorrow morning before you leave the house, your second application. This is your new twice daily rhythm. Step three. Take a photograph of the areas of greatest thinning today before your first application. In direct natural light. From above at the crown and from the front at the hairline. Store the photographs. Set reminders for 2 weeks, 4 weeks, and 8 weeks to retake them. The progress is cumulative and you will miss it without the comparison. At week two, you will likely see less shedding. At week four, you will see new fine growth beginning. At week eight, you will see the density change clearly. Without the

22:22 photographs, you will underestimate what has happened and you will be more likely to stop before the full result has expressed itself. I want to bring you back to where we began. Yuki ran her fingers through her hair on the second morning and felt something different. Not magic, not coincidence. The eugenol in the cloves had been dilating her scalp capillaries since the first application delivering blood to follicles that had been receiving a reduced supply for years. The sulfur from the onion had been available at the follicle for hours, providing the raw material for the thicker shaft production she was feeling at the root. The quercetin had been reducing the DHT signal that had been shrinking her follicles for years. 48 hours. That is

23:08 when the biology begins to show. The hair that reflects that biology fully takes weeks. But the follicle environment that makes that hair possible changes from the first application. Make the preparation today. Spray tonight. Massage for 10 minutes. If you typed 16 in the comments at the beginning of this video, that commitment was the beginning. The spray bottle is the next step. I am Dr. Hinohara. Please subscribe if today was useful to you. Leave a comment telling me which area of thinning you are most hoping to address. I read everyone. I will see you next time.

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