A Dermatologist Revealed Why Biotin Doesn't Work on Relaxed Hair
Years of Damage Created a Barrier That Blocks 97% of Vitamins From Reaching Follicles
Over 22,000 Happy Black Queens
Sun, Nov 12th, 2024
By Katya Sams
Dr. Williams thought she'd seen everything in her 22 years as a dermatologist specializing in hair loss among Black women. But when Denise Williams, 47, walked into her Atlanta office with a grocery bag full of empty biotin bottles, even she was taken aback.
"Three years," Denise said, setting the bag on the exam table. "Three years of biotin. 10,000 micrograms every single day. And my edges are worse than when I started."
Dr. Williams nodded slowly. She'd heard this story hundreds of times. Maybe thousands.
"Let me guess," she said. "You started relaxing your hair young?"
Denise's eyes widened. "How did you know? I was eleven. My mama said my hair was too nappy for the church choir."
"And you kept relaxing it for how long?"
"Until about five years ago. So... thirty-one years total."
Dr. Williams pulled out a small handheld device—a digital microscope that could magnify the scalp 200 times. She pressed it against Denise's temple, and the image appeared on a screen mounted on the wall.
What Denise saw made her gasp.
The Hidden Damage Relaxers Leave Behind
"See these areas here?" Dr. Williams pointed to patches of thick, fibrous tissue visible on the magnified image. "This isn't normal scalp. This is scar tissue. Thirty-one years of relaxer created something we call a dermal barrier."
Denise leaned closer. "That looks like... leather almost."
"That's actually a perfect description. The sodium hydroxide in relaxers—it's essentially the same chemical used in drain cleaner—doesn't just straighten your hair shaft. Every time it touches your scalp, it causes micro-burns. Your body responds by building up protective tissue. Layer after layer, year after year."
"So what does that have to do with biotin not working?"
Dr. Williams pulled up a diagram on her computer. "Biotin is water-soluble. It travels through your bloodstream and needs to pass through your scalp tissue to reach your hair follicles. But look at the thickness of this barrier..."
She measured the scar tissue on the screen. "Normal scalp tissue is about 1.5 millimeters thick. Yours is measuring between 3 and 4 millimeters. That's over double. And this thickened tissue? It has significantly reduced blood flow and nutrient penetration."
"So the biotin is in my body..."
"But it can't get to where it needs to go. Studies show that dermal scarring can block up to 97% of topically and systemically delivered nutrients from reaching the follicle. You've been taking biotin faithfully. It just never had a chance."
Why This Affects So Many Black Women
Denise sat in silence, processing what she'd just learned. "Why doesn't anyone talk about this?"
Dr. Williams sighed—a heavy exhale that suggested years of frustration. "The hair care industry makes billions selling biotin to women like you. Telling you that your scalp might be too damaged to use it? That's not profitable."
She opened a file on her computer filled with research papers.
"A 2019 study in the Journal of Dermatological Science examined scalp tissue in women with a history of chemical relaxer use. They found that 89% had some degree of dermal fibrosis—that's the medical term for this scarring. The longer the relaxer history, the more severe the barrier."
"And nobody told us."
"Nobody told you. Because the assumption has always been that Black hair needs to be 'fixed.' And if the fix causes damage... well, that's just the price of looking 'acceptable.'"
Denise felt something shift inside her. Not just disappointment—anger. All those years of biotin. All that money. And the answer wasn't that biotin didn't work. It was that her scalp had been damaged too badly to let it work.
"So what do I do now? Is there anything that can help?"
The Science of Getting Through
Dr. Williams turned back to her computer. "About six months ago, I started noticing something interesting in my patients. The ones who were seeing real improvement weren't just taking biotin. They were taking it with specific companion nutrients."
She pulled up a clinical trial. "This is from a study published last year. Researchers gave one group biotin alone. Another group got biotin with orthosilicic acid—that's a bioavailable form of silica—plus Vitamin D3. After 90 days, the biotin-only group showed almost no improvement. The combination group? Their hair growth increased by over 70%."
"What makes silica so different?"
"It's all about delivery. Orthosilicic acid molecules are small enough to penetrate damaged tissue. And here's the key—they actually help carry other nutrients with them. Think of it like a courier. The biotin can't get through on its own, but the silica can escort it past the barrier."
"And the Vitamin D?"
"Critical for Black women especially. Over 76% of us are deficient—our melanin blocks the UV rays we need to synthesize it naturally. And Vitamin D receptors in the hair follicle control the growth cycle. Without adequate D, the follicle stays in its resting phase instead of actively growing."
Dr. Williams wrote something on her prescription pad—not a prescription, but a note. "I've been recommending this specific combination to my patients with relaxer history. Three ingredients: biotin for keratin production, orthosilicic acid as a carrier, and Vitamin D3 to wake up the follicles."
What Happened Next
Denise left with the note clutched in her hand. She found a supplement that combined all three ingredients—a gummy, actually, which she appreciated because she was tired of choking down horse pills.
The first two weeks, nothing seemed different. She almost gave up.
Then, during week three, she noticed something strange. Her scalp felt different. Less tight. Like the skin itself was loosening.
Week five: Her stylist, who'd been doing her hair for twelve years, set down her comb mid-appointment. "Denise. What are you doing differently?"
"What do you mean?"
"Your edges. There's baby hairs here that weren't here last month."
Denise had to see for herself. She grabbed the handheld mirror. Her stylist was right. Tiny, soft hairs were sprouting along her hairline—areas that had been bare for years.
By month three, the change was undeniable. The thin patches at her temples were filling in. Her hair felt thicker when she ran her fingers through it. Her ponytail had actual volume.
But the moment that broke her came at month four. Her 23-year-old daughter stopped by unexpectedly and found Denise styling her hair without a wig.
"Mama..." she said, her voice cracking. "Your hair."
Denise turned from the mirror, tears already forming. "Baby, I know."
"It's beautiful. It looks like old pictures of you. Before..."
"Before thirty-one years of relaxers."
They held each other and cried—not tears of sadness, but something more complicated. Relief. Grief for all the lost years. And hope that maybe, finally, the damage could be undone.
The Real Solution Isn't Complicated
Dr. Williams now starts every appointment with a scalp analysis. She tells her patients what she told Denise: biotin alone won't work if your scalp can't deliver it.
"The combination matters," she explains. "Biotin for the raw material. Silica to get it where it needs to go. Vitamin D to tell the follicle to start growing. Remove any one of those three, and you're back to empty bottles and broken promises."
For Denise, the journey isn't over. She knows thirty-one years of damage won't fully reverse in a few months. But for the first time in longer than she can remember, she sees a future where she doesn't need wigs. Where she can wear her hair pulled back without shame. Where the barrier that blocked everything finally has a way through.
Meet Your New Everyday Hair Essentials
Blocks DHT: Cause of Shedding
Supports edges, crown, and overall hair fullness
Biotin-Silica Complex 40x more absorbable than regular biotin
CHECK AVAILABILITY ⮕
4.8 out of 5
The biotin was never the problem.
Getting it to where it needed to go was.
LUMIN Hair Growth Gummies contain the precise combination of Biotin, Orthosilicic Acid (bioavailable silica), and Vitamin D3. Formulated specifically for women whose scalps have been affected by years of chemical processing.
See What the Sisters Are Saying
Over 22,000 bags sold and 900+ 5-star reviews
“It worked for me thank you so much. My hair had increase in growth became soft and I have no itching anymore.”
Angie C.
Verified Buyer
“After 3 weeks I’ve noticed hairs pushing through my receding hairline and the hairs on my face aren’t growing as fast and much easier to remove (less painful) thank you.”
Lenita M.
Verified Buyer
Rhonda C.
Verified Buyer
Meet Your New Everyday Hair Essentials
Your crown awaits, Queen. It's time to get your edges—and yourself—back.
SHOP NOW
Over 900+ Five Star Reviews!
PRODUCT DISCLAIMER
At LUMIN, we’re committed to helping women reclaim their confidence by restoring hair health naturally. Our Hair Growth Gummies are formulated with high-quality, plant-powered ingredients and backed by scientific research to support hair thickness, scalp nourishment, and visible growth.
The content provided across our site—including videos, testimonials, educational articles, and product pages—is for informational purposes only. It is not intended to diagnose, treat, or provide medical advice for any condition.
LUMIN Hair Growth Gummies are designed to help support keratin production, improve circulation to the scalp, and promote a healthy hair growth cycle—especially for women experiencing thinning due to hormonal changes, stress, or aging.
Important: Consult with a healthcare professional before using this product if you are taking any medications, have any medical conditions, are pregnant, nursing, or planning to become pregnant.
Individual results may vary. Statements on this site have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.
© 2025 LUMIN. All Rights Reserved.