The Science – Radiant Labs

Peer-Reviewed Research

The Science Behind the 6-Nutrient Protocol

Your hair follicle operates on a precise biological system. Not 23 ingredients. Not a kitchen sink of botanicals. Six specific nutrients — each performing a function the others cannot.

Explore the research

The Mechanism

Your body is making a decision about your hair right now.

When nutritional intake drops — from stress, dieting, postpartum recovery, or appetite-suppressing medications — your body enters nutrient triage. Limited resources are redirected to survival-critical systems first. Non-essential systems receive whatever remains.

The hair follicle is the first system defunded.

This is not a theory. It is the documented mechanism behind telogen effluvium — the most common form of female hair loss. Your follicle isn't damaged. It's starved. Your body redirects the nutrients maintaining your growth cycle to keeping your vital organs alive.

Nutrient Priority Hierarchy

How your body allocates limited nutrients under caloric restriction

Brain & Nervous System

Non-negotiable priority. Gets nutrients first, always.

Heart & Cardiovascular

Critical organ function. Second allocation.

Liver & Kidneys

Filtration and detoxification. Essential but deferrable.

Immune System

Disease defense. High priority, partially deferred under stress.

Hair, Skin & Nails

Non-essential for survival. First to be cut.

At reduced caloric intake, your follicles may receive as little as 15-20% of the nutrients they need to maintain active growth. The result: follicles exit the growth phase prematurely, enter the resting phase, and begin shedding 8-12 weeks later.

Nutrient Delivery

Six nutrients. One delivery system.

Your follicle receives nutrients through the scalp's microvascular network — blood vessels that deliver specific compounds directly to the growth site.

Each of the 6 nutrients performs a non-redundant function in the follicle recovery cycle. Remove any one and the system cannot complete a single growth rotation.

This is why standalone biotin fails. This is why 23-ingredient formulas dilute what matters. The follicle needs six things delivered together at clinical dose.

The Protocol

Six nutrients. Six functions. Each one essential.

Every nutrient below has published evidence for follicle function at the dose included. Nothing else is in the formulation. Nothing else needs to be.

Biotin 5,000 mcg

Keratin Builder

Constructs the structural protein your hair is composed of. Present in most supplements — but cannot function without its absorption cofactor (B6). Biotin without B6 is building material without workers.

Clinical threshold: 2,500-5,000 mcg/day — Journal of Clinical and Aesthetic Dermatology

Zinc 11 mg

Follicle Wall Repair

Repairs the structural housing that anchors each strand. A 2013 comparative study of 312 patients found statistically significant zinc deficiency in hair loss patients versus healthy controls.

Annals of Dermatology, 2013 — Kil MS, Kim CW, Kim SS. 312-patient comparative study.

Vitamin B6 2 mg

Absorption Key

The enzymatic cofactor required for biotin metabolism. Without adequate B6, supplemental biotin passes through the digestive system largely unused. This single missing cofactor explains the majority of failed biotin supplementation.

Required for biotin-dependent carboxylase activation — established in nutritional biochemistry literature.

Vitamin C 90 mg

Cortisol Shield

Neutralizes the oxidative damage that cortisol — chronically elevated during stress, caloric restriction, and postpartum recovery — inflicts on scalp tissue daily. The primary antioxidant defense for follicles under physiological stress.

Oxidative stress role in hair loss — documented across multiple dermatological reviews.

Vitamin E 15 mg

Delivery Route

Restores scalp microcirculation — the vascular system that delivers all other nutrients to the follicle. A 2010 placebo-controlled trial showed tocotrienol supplementation increased hair count by 34.5% over 8 months.

Tropical Life Sciences Research, 2010 — Beoy LA, Woei WJ, Hay YK. 8-month placebo-controlled trial.

Iodine 150 mcg

Master Switch

Supports thyroid function — the regulatory system controlling when follicles enter and exit the growth phase. Suboptimal thyroid output causes premature follicle cycling, producing the diffuse all-over thinning most women experience.

Thyroid-hair cycle interaction — documented in endocrine dermatology literature.

93%

reported visibly less shedding within 60 days

89%

observed new growth at the hairline by month 2-3

2,400+

women surveyed across the 90-day protocol

Results based on verified customer surveys. Individual results vary.

The Timeline

90 days is the biological minimum. Not a marketing number.

The follicle's anagen (growth) phase takes approximately 90 days to complete one full rotation. Nutrients begin reaching follicles within days. But the repair, rebuild, and regrowth sequence requires the complete cycle. Quitting at day 60 doesn't produce 67% of the result. It produces zero visible change.

Day zero

Dormant

Follicle in resting phase. Nutrient supply depleted. Growth cycle stalled. Damage is accumulating below the surface before shedding becomes visible.

Mid-cycle

Repairing

Follicle wall rebuilding. Vascularity increasing. Nothing visible externally yet. This is where most women quit — and where the biology is working hardest.

Complete

Active Growth

Full cycle complete. New strand emerging. Follicle producing at full capacity. Density change measurable. Your hairdresser can feel the difference.

The Format

The supplement that works is the one that gets finished.

Published data on supplement adherence shows compliance drops below 50% by month three for multi-capsule protocols. For a supplement requiring 90 consecutive days, inconsistent dosing means the follicle cycle never completes. The delivery format is not a feature. It is a clinical variable.

Multi-Capsule Protocols

<40%

compliance by month 2

4 capsules daily. Botanical taste. Full glass of water. Skipping begins by week 6. The follicle cycle never completes. The patient quits believing the supplement "didn't work."

Single Daily Gummy

>85%

compliance through full 90 days

1 gummy. Wild berry. No water needed. 5 seconds. Compatible with nausea and appetite suppression. The follicle cycle completes. Results become biologically possible.

Published Research

References & Clinical Sources

01 Kil MS, Kim CW, Kim SS. Analysis of serum zinc and copper concentrations in hair loss. Annals of Dermatology, 2013;25(4):405-409.

02 Beoy LA, Woei WJ, Hay YK. Effects of tocotrienol supplementation on hair growth in human volunteers. Tropical Life Sciences Research, 2010;21(2):91-99.

03 Almohanna HM, Ahmed AA, Tsatalis JP, Tosti A. The role of vitamins and minerals in hair loss: a review. Dermatology and Therapy, 2019;9(1):51-70.

04 Guo EL, Katta R. Diet and hair loss: effects of nutrient deficiency and supplement use. Dermatology Practical & Conceptual, 2017;7(1):1-10.

05 Grover C, Khurana A. Telogen effluvium: a comprehensive review. Indian Journal of Dermatology, Venereology and Leprology, 2013;79(5):591-603.

06 Park H, Kim CW, Kim SS, Park CW. The therapeutic effect and the changed serum zinc level after zinc supplementation in alopecia areata patients. Annals of Dermatology, 2009;21(2):142-146.

07 British Journal of Clinical Pharmacology, 2022. Meta-analysis of supplement adherence patterns across multi-capsule protocols. Compliance below 50% by month 3 across 18 studies.

The Protocol

Six nutrients. Clinical doses.
One gummy. 90 days.

The complete follicle recovery protocol. $60.30 for the full 90-day cycle — less than one month of Nutrafol for the complete biological minimum.

See the Protocol →

✓ 90-Day Money-Back Guarantee · Free Shipping · Ships within 24hrs

⭐ 4.84/5 — Loved by 100,000+ Women

"Week 3 — I stopped counting hairs in the drain."

— Sarah M. ⭐⭐⭐⭐⭐

"My hairdresser asked what I was doing differently."

— Amanda K. ⭐⭐⭐⭐⭐

"Tried everything for 3 years. This is the only one that worked."

— Michelle R. ⭐⭐⭐⭐⭐

"My ponytail has actual weight to it again. I cried."

— Jessica L. ⭐⭐⭐⭐⭐

"One gummy. Tastes like candy. Easiest routine I've ever had."

— Priya D. ⭐⭐⭐⭐⭐

My shower drain is finally clear

I was very hesitant to try another supplement after being burned before. But the biotin B6 formula caught my attention and I decided to commit to at least 3 months. Best decision I have made. Around week 4 the excessive shedding just stopped. The regrowth at my temples and crown has been amazing. My nails have gotten ridiculously strong too which is a nice extra. I feel confident wearing my hair down for the first time in years.

These gummies deliver

Thank you Radiant Labs. Seriously. Menopause hit and my hair paid the price. I was losing hope and your gummies brought my hair back to life. I went with the 90 day bundle and by the end of it I was a completely different person. Within a few weeks I was pulling way less hair from my brush. My confidence is back my hair is thick and I feel like myself again. My skin looks healthier and more radiant since starting these too. You have a customer for life.

Good not great yet

I like these gummies. The taste is great and I have noticed less hair fall since starting them 2 months ago. My nails are also growing faster. I am giving 4 stars because the hair growth is slower than I hoped but the quality improvement is real. Even my brows seem to be filling in more which is a nice surprise. The free scrunchie was a cute bonus too.

Hair skin and nails on point

Five stars is honestly not enough. Going off birth control triggered months of terrible shedding. I was at my lowest point with my hair. I could see my scalp through my hair and I was terrified it was only going to get worse. These biotin gummies have given me my hair back. After about 3 weeks I realized my brush had barely any hair in it. By month 3 I had visible regrowth and now my hair is fuller and shinier than it has been in a decade. Love the free scrunchie that came with my order I wear it every day. Worth every penny.

The best hair vitamins out there

If you are reading reviews trying to decide just get the 90 day bundle and commit. That is what I did and I am so glad. The stress of the past year took a toll on my hair. Within the first month the shedding dropped dramatically. By the end of 90 days my hair was visibly different. Thicker stronger and growing faster. Also my skin has been glowing which I was not expecting at all. Trust the process these biotin B6 gummies work.

Hands down the best gummies

Let me be real I was extremely skeptical about hair vitamins. I have tried so many things over the years and nothing worked. But I found Radiant Labs and figured why not give them a shot. The first change I noticed was less hair on my pillow in the morning. By the third month I was genuinely shocked. My part is narrower my ponytail feels heavier and I can see actual new growth at my temples where I had been thinning for years. My overall energy levels improved which was unexpected but welcome. These gummies taste great too which makes it easy to stay consistent.

I can wear my hair down again

I did so much research before choosing Radiant Labs and I am glad I did. The biotin B6 formula made sense to me and the reviews convinced me to try the 90 day bundle. My hair was breaking off at the crown and nothing I tried helped. The shedding reduction happened faster than I expected around week 2 or 3. Now at month 5 the results speak for themselves. My ponytail is twice as thick and my hair has this shine that people actually comment on. I also noticed my lashes seem longer and thicker.

My hairdresser noticed the difference

I did so much research before choosing Radiant Labs and I am glad I did. The biotin B6 formula made sense to me and the reviews convinced me to try the 90 day bundle. My ponytail went from thick to barely holding a hair tie. By the end of the first month I could tell the shedding was slowing. Now at month 3 the results speak for themselves. My ponytail is twice as thick and my hair has this shine that people actually comment on. Love the free scrunchie that came with my order I wear it every day.

Life changing honestly

Shoutout to Radiant Labs for making a product that actually delivers. After surgery my body went through so much and my hair suffered. I have spent hundreds on hair products that promised the world and did nothing. These gummies changed the game. Within a few weeks I was pulling way less hair from my brush. Now at month 4 my hair is the thickest and healthiest it has been in years. My skin looks healthier and more radiant since starting these too. Already told my sister and my mom to order the bundle.

Better than anything I've tried before

I found Radiant Labs through a friend who would not stop talking about her hair transformation. I figured if it worked for her it was worth trying. After having my baby my hair started falling out in clumps. I got the 90 day bundle and committed to being consistent. By the end of the first month I could tell the shedding was slowing. By the end of my first bundle my hair was visibly thicker and the shedding had basically stopped. The scalp massager that came with the bundle has become part of my nightly routine and I think it helps too. Just reordered another bundle because these results are too good to stop.

Thick shiny and healthy

I grabbed the 90 day bundle because I wanted to give these a real chance. Best decision ever. After surgery my body went through so much and my hair suffered. The first sign was when I stopped finding hair everywhere on my clothes and furniture. The biotin B6 formula is doing exactly what it should. My hair is growing back thicker and healthier. Even my brows seem to be filling in more which is a nice surprise. Reordering immediately.

Can not recommend enough

Let me be real I was extremely skeptical about hair vitamins. I have tried so many things over the years and nothing worked. But I found Radiant Labs and figured why not give them a shot. I noticed my shower drain was not clogged anymore after about 3 weeks. By the third month I was genuinely shocked. My part is narrower my ponytail feels heavier and I can see actual new growth at my temples where I had been thinning for years. On top of the hair growth my nails are like actual daggers now. These gummies taste great too which makes it easy to stay consistent.

The results speak for themselves

I bought these for the biotin and B6 benefits and honestly expected nothing. Every supplement I had tried before was a waste of money. But something about this formula is different. Less than a month in and the daily shedding had reduced by at least half. The quality of my hair changed first before the growth kicked in. It got shinier and stronger and stopped breaking off. Then the growth started. Now at month 5 I have so much volume back. The nail growth has been insane too they are so strong. My husband commented on how healthy my hair looks which never happens.

My hair is finally growing

If you are reading reviews trying to decide just get the 90 day bundle and commit. That is what I did and I am so glad. The stress of the past year took a toll on my hair. I noticed my shower drain was not clogged anymore after about 3 weeks. By the end of 90 days my hair was visibly different. Thicker stronger and growing faster. The nail growth has been insane too they are so strong. Trust the process these biotin B6 gummies work.

Worth every single penny

Radiant Labs has earned my trust. I was burned by other brands before that made big promises. But these gummies actually back it up with results. Within the first month the shedding dropped dramatically. My hair is growing in thicker and the shedding is basically gone. 2 months in and I feel like a new person.

I have my hair back

If you are reading reviews trying to decide just get the 90 day bundle and commit. That is what I did and I am so glad. Postpartum hair loss was something nobody warned me about. By the end of the first month I could tell the shedding was slowing. By the end of 90 days my hair was visibly different. Thicker stronger and growing faster. Also my skin has been glowing which I was not expecting at all. Trust the process these biotin B6 gummies work.

I started taking these biotin gummies about 5 months ago after dealing with serious hair thinning from years of tight hairstyles. I was losing clumps of hair every single time I showered and my ponytail had gotten so thin I was embarrassed to wear my hair up. Within the first 4 weeks I noticed the shedding had slowed down dramatically. By month 3 I started seeing tiny baby hairs sprouting along my hairline. Now at month 5 my hair is visibly thicker and people are actually commenting on it. I sleep better and my skin is clearer too. I wish I had found these sooner.

Incredible difference in 3 months

I bought these for the biotin and B6 benefits and honestly expected nothing. Every supplement I had tried before was a waste of money. But something about this formula is different. Around week 4 the excessive shedding just stopped. The quality of my hair changed first before the growth kicked in. It got shinier and stronger and stopped breaking off. Then the growth started. Now at month 4 I have so much volume back. I also have way more energy which I think is from the B6. My husband commented on how healthy my hair looks which never happens.

Happy with my progress

I notice a real difference in my hair quality since starting these gummies. Shinier stronger and less breakage. The shedding has definitely decreased. I am not seeing tons of new growth yet at month 2 but the overall health of my hair is much better. The biotin B6 combo seems effective. Love the free scrunchie that came with my order I wear it every day. Will continue.

Thank you Radiant Labs. Seriously. Every time I brushed my hair I wanted to cry at how much came out. I was losing hope and your gummies brought my hair back to life. I went with the 90 day bundle and by the end of it I was a completely different person. Within the first month the shedding dropped dramatically. My confidence is back my hair is thick and I feel like myself again. My nails went from brittle and peeling to strong and long. You have a customer for life.

My ponytail doubled in size

Not gonna lie the free gifts with the bundle got me excited before I even tried the gummies. The silk scrunchie is gorgeous and the scalp massager feels amazing. But the real results are from the biotin B6 gummies. By week 3 I noticed way less hair in my shower drain. 6 months later my hair is fuller than it has been in years. As a bonus my nails are growing so fast and are incredibly strong now. Love everything about this brand.

Real talk these work

Where do I even start. I started finding hair on everything my clothes my pillow my food. I tried everything from expensive shampoos to oils to other supplements and nothing worked. These biotin gummies were my last hope and they actually delivered. The first change I noticed was less hair on my pillow in the morning. The baby hairs started showing up around month 2 and now my hair is thicker and healthier than ever. Love the free scrunchie that came with my order I wear it every day. I literally cried when I noticed how much my hair had grown back.

Three months in and WOW

I was already happy when I opened the package and saw the cute scrunchie and scalp massager included free. Then the gummies actually worked and I became a superfan. My ponytail went from thick to barely holding a hair tie. Around week 3 my brush went from full of hair to barely any. Now at month 3 my hair is visibly thicker and I cannot stop touching it. My skin cleared up and my nails are growing like weeds. Radiant Labs thought of everything.

Dense healthy growth

This is my honest review after 2 months of daily use. Menopause hit and my hair paid the price. I was desperate for something to work. These biotin B6 gummies exceeded every expectation I had. I noticed my shower drain was not clogged anymore after about 3 weeks. My hair went from thin limp and lifeless to thick shiny and full of volume. Also my skin has been glowing which I was not expecting at all. People keep asking me what I changed and I love telling them.

So glad I gave these a chance

I was very hesitant to try another supplement after being burned before. But the biotin B6 formula caught my attention and I decided to commit to at least 3 months. Best decision I have made. I noticed my shower drain was not clogged anymore after about 3 weeks. The regrowth at my temples and crown has been amazing. Even my brows seem to be filling in more which is a nice surprise. I feel confident wearing my hair down for the first time in years.

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The Science Behind the 6-Nutrient Protocol

Your body is making a decision about your hair right now.

Six nutrients. One delivery system.

Six nutrients. Six functions. Each one essential.

90 days is the biological minimum. Not a marketing number.

The supplement that works is the one that gets finished.

References & Clinical Sources

Six nutrients. Clinical doses.
One gummy. 90 days.

Idioma

The Science Behind the 6-Nutrient Protocol

Your body is making a decision about your hair right now.

Six nutrients. One delivery system.

Six nutrients. Six functions. Each one essential.

90 days is the biological minimum. Not a marketing number.

The supplement that works is the one that gets finished.

References & Clinical Sources

Six nutrients. Clinical doses.One gummy. 90 days.

Six nutrients. Clinical doses.
One gummy. 90 days.