Who We Are

DR BARRON was founded by two practicing physicians with over 50 years of combined clinical experience. Our formulations are built the same way we build treatment plans — review the literature, weigh the evidence, choose only what the data supports.

Dr. Adam Barron, MD

Dr. Adam Barron, MD

Co-Founder

Board Certified Rheumatologist

Practicing since 2003.

Dr. Renanit Barron, MD

Dr. Renanit Barron, MD

Co-Founder

Board Certified Endocrinologist

Practicing since 2003.

Who We Are

Physician-Led Development

Every formulation is developed by the same physicians who treat patients. The standard is the same one we use in clinical care — start with the literature, and don't include anything the data doesn't support

Research-First Selection

We don't start with a marketing brief. We start with published, peer-reviewed research. If an ingredient lacks documented support, it doesn't move forward — regardless of how well it sells elsewhere.

Selected for Bioavailability

Ingredient form and dose are chosen based on what the research shows the body can actually use. A well-studied ingredient in a poorly absorbed form doesn't belong in the formula.

Our Ingredients

Two formulations. 18 ingredients (11 gummies + 7 serum). Every one selected through the same standard.

  • All Ingredients
  • Serum
  • Gummies
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Copper Tripeptide-1 (GHK-Cu)

Copper Tripeptide-1 (GHK-Cu)

Acetyl Tetrapeptide-3

Acetyl Tetrapeptide-3

Biotin

Biotin

Rosemary Leaf Extract

Rosemary Leaf Extract

Caffeine

Caffeine

Bacillus Ferment

Bacillus Ferment

Saccharomyces Ferment Filtrate

Saccharomyces Ferment Filtrate

Collagen Peptides (Bovine)

Collagen Peptides (Bovine)

L-Cysteine HCl

L-Cysteine HCl

MSM

MSM

Pumpkin Seed Extract

Pumpkin Seed Extract

Bamboo Extract (Providing Silica)

Bamboo Extract (Providing Silica)

Vitamin C

Vitamin C

Vitamin D3

Vitamin D3

Vitamin E

Vitamin E

Zinc

Zinc

Selenium

Selenium

Biotin

Biotin

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Copper Tripeptide-1 (GHK-Cu)

Copper Tripeptide-1 (GHK-Cu)

A naturally occurring peptide that supports the structural foundation around hair follicles. Helps maintain scalp tissue quality and the structures that keep hair anchored over time.*

Acetyl Tetrapeptide-3

Acetyl Tetrapeptide-3

A biomimetic peptide that supports the extracellular matrix surrounding hair follicles. Works alongside GHK-Cu to help maintain the anchoring environment at the scalp level.*

Biotin

Biotin

Supports keratin production, a key structural component of hair and nails.*

Rosemary Leaf Extract

Rosemary Leaf Extract

Maintains scalp vitality and balance. Helps preserve a stable environment for healthy follicle function.*

Caffeine

Caffeine

Associated with follicle function at the scalp surface. These processes are part of the hair's normal cycle.*

Bacillus Ferment

Bacillus Ferment

A postbiotic ingredient that supports scalp balance and integrity. Helps maintain conditions that allow follicles to function comfortably over time.*

Saccharomyces Ferment Filtrate

Saccharomyces Ferment Filtrate

A fermentation-derived filtrate that supports the scalp's natural barrier. Contributes to a healthy scalp environment as part of consistent use.*

Collagen Peptides (Bovine)

Collagen Peptides (Bovine)

Provides amino acids that support skin and nail structure. Plays a role in tissue strength and resilience over time.*

L-Cysteine HCl

L-Cysteine HCl

An amino acid involved in keratin formation and the structural proteins that make up hair and nails.*

MSM

MSM

A sulfur-containing compound that supports the structural framework of hair and nails.*

Pumpkin Seed Extract

Pumpkin Seed Extract

A botanical ingredient that supports overall hair health by contributing nutrients associated with normal hair maintenance.*

Bamboo Extract (Providing Silica)

Bamboo Extract (Providing Silica)

A natural source of silica, a trace mineral involved in connective tissue structure and hair quality.*

Vitamin C

Vitamin C

Involved in collagen synthesis and antioxidant protection for skin structure and cellular health.*

Vitamin D3

Vitamin D3

Plays a role in hair follicle cycling and the signaling pathways involved in maintaining normal hair growth.*

Vitamin E

Vitamin E

A fat-soluble antioxidant that helps protect scalp tissue and follicles from oxidative damage.*

Zinc

Zinc

An essential mineral involved in cell division and protein synthesis at the follicle level.*

Selenium

Selenium

A trace mineral that supports antioxidant enzyme activity and helps protect hair follicles from oxidative stress.*

Biotin

Biotin

Supports keratin production, a key structural component of hair and nails.

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Published Research

75+ peer-reviewed studies informed our ingredient selection and dosing. Every study listed below is published in a scientific journal and linked directly to PubMed.

Biotin

(6 studies) Biotin
YEAR
TITLE
JOURNAL
1989
Treatment of brittle fingernails and onychochilid with biotin: scanning electron microscopy
Journal of the American Academy of Dermatology
1993
Biotin in the treatment of brittle nails
Cutis
2017
Biotin Deficiency: A Review of the Literature
Skin Appendage Disorders
2024
A Systematic Review of Biotin Supplementation for Hair and Nails
Oral Biotin Supplementation in Female Alopecia
1966
Oral Biotin Supplementation in Female Alopecia
(vintage citation, no direct link)
2018
Biotin in Isotretinoin and Post-Bariatric Surgery Populations
(Nutrition)

Hydrolyzed Collagen Peptides

(6 studies) Hydrolyzed Collagen Peptides
YEAR
TITLE
JOURNAL
2013
Oral supplementation of specific collagen peptides has beneficial effects on human skin physiology
Skin Pharmacology and Physiology
2017
Effect of collagen peptide supplementation on the nails of women with brittle nail syndrome
Journal of Cosmetic Dermatology
2019
Oral Collagen Supplementation: A Systematic Review of Dermatological Applications
Journal of Drugs in Dermatology
2024
A Clinical Trial Shows Improvement in Skin Collagen, Hydration, Elasticity, Wrinkles, Scalp, and Hair Condition Following 12-Week Oral Intake of a Supplement Containing Hydrolysed Collagen
Dermatology Research and Practice
2023
Sustained Effects of Bioactive Collagen Peptides on Skin Aging
(Dermatology)
2023
Collagen Peptide NS Improvements in Skin Hydration, Elasticity, Desquamation, and Wrinkles
Food & Function

L-Cysteine / L-Cystine

(5 studies)
YEAR
TITLE
JOURNAL
2000
Cystine and thiamin-containing oral treatment for telogen effluvium
British Journal of Dermatology
2017
Cystine derivatives in hair growth: a literature review
Skin Appendage Disorders
2020
L-Cystine-Containing Hair-Growth Formulation: In Vitro and Ex Vivo Keratinocyte Study
Skin Pharmacology and Physiology
2018
Kera-Diet Keratin Hydrolysate + L-Cystine: Randomized Placebo-Controlled in Diffuse Hair Loss
Kera-Diet Keratin Hydrolysate + L-Cystine: Randomized Placebo-Controlled in Diffuse Hair Loss
2019
FKH Keratin Hydrolysate + Supporting Nutrients: 12-Week Skin, Hair, Nail Study
FKH Keratin Hydrolysate + Supporting Nutrients: 12-Week Skin, Hair, Nail Study

Bamboo Silica

(5 studies)
YEAR
TITLE
JOURNAL
1993
Effects of orthosilicic acid on collagen induction
Calcified Tissue International
2005
Silicon and bone health
Journal of Nutrition, Health & Aging
2016
Silicon: the health benefits of a metalloid
Metal Ions in Life Sciences
2025
Sesbania Biotin + Bambusa Silica Extract: 90-Day Randomized Double-Blind Placebo-Controlled Trial
(Cosmetics / Trichology)
2018
Choline-Stabilized Orthosilicic Acid: Randomized Controlled Trial on Hair, Skin, and Nail Brittleness
(Dermatology)

Pumpkin Seed Extract

(5 studies)
YEAR
TITLE
JOURNAL
2019
Inhibitory effect of pumpkin seed oil on hepatic 5-alpha reductase
Journal of Food Biochemistry
2021
Cucurbita pepo (pumpkin) seed: a review of phytochemistry and pharmacology
Phytotherapy Research
2014
Korean RCT: Pumpkin Seed Oil 400mg/Day for Androgenetic Alopecia in Men
Evidence-Based Complementary and Alternative Medicine
2021
Pumpkin Seed Oil vs Minoxidil 5% in Female Pattern Hair Loss: Comparative Trial
(Dermatology)
2019
Topical and Oral Pumpkin Oil in Mouse Model: Hair Growth Promotion
Phytomedicine

MSM (Methylsulfonylmethane)

(5 studies)
YEAR
TITLE
JOURNAL
2018
Methylsulfonylmethane: applications and safety of a novel dietary supplement
Nutrients
2020
Beauty from Within: Oral MSM for Skin Aging Reduction in Fine Lines and Wrinkles
(Dermatology)
2024
Hair and Nail Pilot Study: Dose-Response 1g vs 3g MSM Over 16 Weeks
(Cosmetics)
2020
MSM 1000mg Daily 120-Day Supplementation in Hair Loss
(Cosmetics)
2017
MSM + Magnesium Ascorbyl Phosphate Combination on Hair Growth
Journal of Cosmetic Dermatology

Vitamin C (Ascorbic Acid)

(4 studies)
YEAR
TITLE
JOURNAL
2017
The Roles of Vitamin C in Skin Health
Nutrients
2018
Vitamin C and Collagen Synthesis: Systematic Review
(Nutrition)
2019
Topical and oral vitamin C in the management of skin and hair conditions
Skin Therapy Letter
2022
Collagen + Ascorbic Acid Anti-Aging Effects on Skin Parameters
PLOS One

Vitamin D3

(5 studies)
YEAR
TITLE
JOURNAL
2016
Efficacy of Oral Vitamin D3 in Telogen Effluvium
(Dermatology)
2019
The role of vitamin D in alopecia areata
International Journal of Trichology
2020
Vitamin D and the hair follicle cycle
International Journal of Molecular Sciences
2024
Active Vitamin D Promotes Hair Growth via NLRP3/IL-1β and HIF-1α/IL-1β Pathway Inhibition
(Mechanistic study, ScienceDirect)
2020
Vitamin D and Female Pattern Hair Loss: Cross-Sectional Study
(Dermatology)

Vitamin E

(5 studies)
YEAR
TITLE
JOURNAL
2010
Effects of tocotrienol supplementation on hair growth in human volunteers
Tropical LifeSciences Research
2016
Vitamin E in dermatology
Vitamin E in dermatology
2016
Vitamin E in Dermatology: 50+ Year Systematic Review
(Dermatology)
2022
Vitamin E and Selenium Antioxidant Pair for Skin and Hair Health
Nutrients
2022
Yellow Nail Syndrome: Oral Vitamin E 1000 IU/Day Plus Antifungals
(Dermatology — please verify exact journal from my master citations doc)

Zinc

(6 studies)
YEAR
TITLE
JOURNAL
2009
The therapeutic effect and the changed serum zinc level after zinc supplementation in alopecia areata patients
Annals of Dermatology
2013
Analysis of serum zinc and copper concentrations in hair loss
Annals of Dermatology
2019
The role of zinc in the treatment of hair disorders
Journal of Drugs in Dermatology
2024
Hair Loss and Zinc Deficiency: A Cross-Sectional Study
Healthcare (MDPI)
2024
Gummy Supplement Trial in Healthy Females with Thinning Hair: Randomized Placebo-Controlled
Journal of Clinical and Aesthetic Dermatology
2017
Cynatine HNS Trial: Keratin + Zinc + B-Complex Combination, 12 Weeks
(Cosmetics / Trichology — please verify exact journal from my master citations doc)

Selenium

(4 studies)
YEAR
TITLE
JOURNAL
2017
The role of micronutrients in alopecia areata: a review
American Journal of Clinical Dermatology
2018
Selenium and selenoproteins in human health and diseases
Antioxidants & Redox Signaling
2018
Selenium and Alopecias: Comprehensive Review
(Dermatology)
2021
Selenoprotein Deiodinases and Thyroid Hormone Conversion: Mechanistic Link to Telogen Effluvium
(Endocrinology)

Copper Tripeptide-1 (GHK-Cu)

(4 studies)
YEAR
TITLE
JOURNAL
2007
Tripeptide-Copper Complex Stimulates Human Dermal Papilla Cell Proliferation and Hair Shaft Elongation
(Cosmetic and Investigational Dermatology)
2019
Microemulsion Delivery of Copper Tripeptide (CaT-ME) in Mouse Model: VEGF/HGF-Mediated Hair Growth
International Journal of Pharmaceutics
2016
GHK Peptide Plus 5-ALA: 7.4× Increase in Hair Count in Clinical Patients
(Cosmetic Dermatology)
2021
Copper Tripeptide Serum: Double-Blind Placebo-Controlled Human Study on Scalp Health
(Dermatology)

Acetyl Tetrapeptide-3

(3 studies)
YEAR
TITLE
JOURNAL
2013
Acetyl Tetrapeptide-3 Effects on Type III Collagen and Laminin Expression: In Vitro Protein Analysis
(Cosmetic Science)
2021
Triple-Blind Controlled Trial: Herbal Extract Containing Acetyl Tetrapeptide-3 vs Minoxidil 3% in Androgenetic Alopecia
International Journal of Trichology
2020
Comparative Analysis of Hair Peptide Serums Including Acetyl Tetrapeptide-3 in Telogen Effluvium
Journal of Cosmetic and Aesthetic Surgery

Rosemary Leaf Extract

(3 studies)
YEAR
TITLE
JOURNAL
2012
Topical Rosemary in Mouse Model of Testosterone-Induced Hair Loss
Phytotherapy Research
2015
A Randomized Controlled Trial of Rosemary Oil vs Minoxidil 2% in Androgenetic Alopecia (Panahi et al.)
Skinmed
2024
Carnosic Acid Activates TRPA1 to Promote Skin Tissue Repair
JCI Insight

Caffeine (Topical)

(3 studies)
YEAR
TITLE
JOURNAL
2014
In Vitro Effects of Caffeine on Human Hair Follicles: Sex-Differential Response, IGF-1 and TGF-β2 Modulation
International Journal of Dermatology
2017
Caffeine 0.2% Topical Solution vs Minoxidil 5% in Men with Androgenetic Alopecia: Multicenter Non-Inferiority Trial
Skin Pharmacology and Physiology
2024
Topical Caffeine for Hair Loss: Systematic Review
Journal of the American Academy of Dermatology

Bacillus Ferment

(4 studies)
YEAR
TITLE
JOURNAL
2019
Bacillus / Trapa japonica Fruit Ferment: Effects on Hair Follicle Dermal Papilla Cells via Akt/ERK/GSK-3β Signaling
Journal of Cosmetic DermatologyBMC Complementary Medicine and Therapies
2022
The role of the skin microbiome in scalp health and hair growth
International Journal of Molecular Sciences
2023
Probiotic and Postbiotic Constituents in Cosmetics: Applications Review
(Cosmetics)
2023
Bacillus subtilis Fermented Tetragonia tetragonioides: Skin Repair, Antioxidant, Anti-Wrinkle Effects
MDPI Cosmetics

Saccharomyces Ferment Filtrate

(3 studies)
YEAR
TITLE
JOURNAL
2023
Postbiotic Saccharomyces / Lactobacillus Ferment Complex for Sensitive Scalp Syndrome: 28-Day Microbiome Analysis
Clinical, Cosmetic and Investigational Dermatology
2020
Saccharomyces cerevisiae Extract: Topical Skin Hydration and Barrier Integrity
(Cosmetic Science)
2023
Postbiotic Skin Care Review
(Cosmetics)