OS-01 HAIR SCALP SERUM
OS-01 HAIR SCALP SERUM
Topical Supplement
- Nourishes the scalp, and promotes visibly thicker, fuller, denser hair01
- 81% showed a +40% improvement in visible hair density after 6 months01
- Dermatologist tested, fragrance-free, suitable for sensitive skin
1 month supply delivered every 1 month.
3 month supply delivered every 3 months.
6 month supply delivered every 6 months.
Free OneSkin Travel bag + EYE travel size + 2 dermarollers
- Plastic neutral refillable packaging
- Exclusive early access to new products
- Earn 2x points for free products on all recurring orders
- Easily change, skip or cancel anytime
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BENEFITS
Daily scalp serum designed to nourish the scalp and support visibly healthier and younger-looking hair.
Promote hair longevity
Addresses visible hair changes associated with age and stress.
Hair health starts at the scalp
Suitable for sensitive skin and supports a healthy scalp microbiome to support healthy hair.
Support thicker, denser, fuller-looking hair
Key ingredients complement the OS-01 Peptide to promote strong, healthy-looking hair for progressive improvements in visible density and thickness.
CLINICAL DATA
Visible results, scientifically validated
81
of participants showed an increase in visible hair density (average +40%) after 6 months 01
78
of participants showed an increase in hair visible thickness (average +43%) after 6 months01
81
of participants observed overall improvements in their hair after 3 months 01
78
of participants said the overall health of their hair improved after 6 months 01
5-STAR REVIEWS
See why customers love OS-01 HAIR
"Just fantastic growth in areas where I desperately needed it." — LaDonna L., Beta Tester
"It worked so well! No irritation and dried without leaving a residue." — Jodi F., Beta Tester
"This is a real solution. Others promise. This delivers. I can only imaging what I'd have to pay to have this in my daily routine—and yes, I will pay it. After a certain age, you pay what you must—not to look younger, but to look your best." — Queen E., Beta Tester
The proof is in the pictures
What makes OS-01 HAIR unique?
- Model
- Proprietary ingredient
- No harsh side effects
- Lightweight & non-greasy
- Drug-free
- No prescription
- Supports scalp health
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OS-01 HAIR
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✓
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Prescription Hair Treatments
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- X
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Leading Supplement
- X
- ✓
- N/A
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Leading Hair Serum
- X
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Invasive Treatments (PRP, hair transplant, etc.)
- X
- X
- N/A
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DIY Oils
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6 active ingredients complement the OS-01 peptide
How to Apply OS-01 HAIR
- We recommend applying one full pipette (2 squeezes) to the entire scalp during each application.
- Fill the glass pipette by squeezing the applicator bulb, one squeeze will give you half the application dose. Apply the serum directly to your scalp, starting at your natural part or hairline.
- Refill the glass pipette again, with a second squeeze, and continue applying to areas of concern to complete the full dose.
- Massage the serum into your scalp with your fingertips to ensure even distribution.
- Do not rinse. Style as usual.
- Use daily on dry or damp hair.
A 50 mL bottle of OS-01 HAIR should last approximately 30 days with regular use.
Your OS-01 HAIR questions answered
All Ingredients
Water, Glycerin, 1,2-Hexanediol, Butylene Glycol, Hydroxyacetophenone, Panthenol, Inulin, Helianthus Annuus (Sunflower) Sprout Extract, Cellulose Gum, Alpha-Glucan Oligosaccharide, Tetrasodium Glutamate Diacetate, Propanediol, Morus Nigra Leaf Extract, Arginine, Acetyl Tyrosine, Rehmannia Chinensis Root Extract, Pentylene Glycol, Sodium PCA, Erythritol, Chondrus Crispus, PEG-12 Dimethicone, Oryza Sativa (Rice) Bran Water, Decapeptide-52*, Calcium Pantothenate, Zinc Gluconate, Sodium Benzoate, Niacinamide, Ornithine HCL, Caprylyl Glycol, Polyquaternium-11, Citrulline, Hydrolyzed Soy Protein, Xanthan Gum, Glucosamine HCL, Disodium Succinate, Fisetin, Raspberry Ketone, Sodium Benzoate, Citric Acid, Potassium Sorbate, Arctium Majus Root Extract, Panax Ginseng Root Extract, Biotin. *OS-01 Peptide.
OS-01 HAIR SCALP SERUM
- NBNorma B.Verified BuyerReviewingOS-01 HAIRI recommend this productRated 5 out of 5 stars4 minutes agoIs Nice!!
It gives my scalp a calm sensation and now that I’m my 2nd bottle I can see hair growing on my hairline so far so good
Let’s see what happens in a few months im hopeful
- GSGrace S.Verified BuyerReviewingOS-01 HAIR SCALP SERUMI recommend this productRated 5 out of 5 stars22 minutes agoIt’s working?!
I lost a lot of hair after giving birth and I was starting to see a lot of my scalp. I’ve tried an handful of topical serums, shampoos, and even prescription pills and I haven’t really seen a difference in my hair growth in the past 3-4 years. After a recommendation from my sister, I tried the one skin serum along with micro needling and I’m now finally seeing little hairs sprouting!!!
- SWStacy W.Verified BuyerReviewingOS-01 HAIRI recommend this productRated 5 out of 5 starsYesterdaySo far so good
I am happy with this product as I have already noticed less shedding in just 2 weeks. I like the way I can use it on my scalp even in between hair wash’s. It leaves no residue!
- KKeithReviewingOS-01 HAIR SCALP SERUMI recommend this productRated 5 out of 5 starsYesterday5 Stars
Great
- EEllenVerified BuyerReviewingOS-01 HAIR SCALP SERUMRated 3 out of 5 stars3 days agoReduces Shedding, But Caises Nausea
I really like the results but it causes nausea. I stopped using for a while. Nausea disappeared. Then started using again, and it returned. I’m wondering if it could be the ginseng which does get absorbed and is known to cause nausea.
OneSkinYesterdayHi Ellen!
Thank you so much for taking the time to share your experience with OS-01 HAIR SCALP SERUM! We're really glad to hear that you're seeing positive results with shedding reduction - that's exactly the kind of improvement we're hoping our customers will experience with consistent use.
We're so sorry to hear that you've been experiencing nausea, and we really appreciate you sharing this detailed feedback about the pattern you've noticed with starting and stopping the product. Your observation about the potential connection to ginseng shows such thoughtful attention to how your body responds to different ingredients, and this kind of detailed feedback is incredibly valuable to us.
Everyone's sensitivity to ingredients can be so individual, and what works beautifully for some people can sometimes cause unexpected reactions for others. We completely understand how frustrating it must be to see the hair benefits you want while dealing with an uncomfortable side effect like nausea.
Your experience and the connection you've identified between using the product and how you're feeling is exactly the kind of real-world feedback that helps us understand how our products work for different customers. We want every aspect of using OS-01 HAIR SCALP SERUM to feel beneficial, not just the hair results.
Thank you for giving OS-01 HAIR SCALP SERUM a try and for sharing both the positive results you've experienced and your honest feedback about the side effects. Your perspective helps us understand the complete customer experience with our products!
A support team member will be reaching out shortly to learn more about your experience as well!
Related Articles
Citations
01 Shown in 6 month double-blind, independent, third-party clinical study with 30 participants using OS-01 HAIR and dermaroller daily. Results based on self-perception reporting and clinical measurements of anagen hairs per cm2, intermediate terminal hairs, hair shaft thickness, inter follicular mean distance, hair count per cm2, and scalp microbiome.
02 Zonari, A., et al. Senotherapeutic peptide treatment reduces biological age and senescence burden in human skin models. npj Aging, 9(1), 1-15. 2023. doi:10.1038/s41514-023-00109-1
More Scientific Resources
Mirmirani, Paradi., et al. Age-related hair changes in men: Mechanisms and management of alopecia and graying. Maturitas, 80(1), 58 - 62. 2015.https://www.sciencedirect.com/science/article/abs/pii/S0378512214003259
Shin, Wisoo et al. Dysfunction of Hair Follicle Mesenchymal Progenitors Contributes to Age-Associated Hair Loss. Developmental Cell, 53(2), 185 - 198. 2020https://www.sciencedirect.com/science/article/pii/S1534580720302318
Huang, Wen-Yen., et al. Stress-induced premature senescence of dermal papilla cells compromises hair follicle epithelial-mesenchymal interaction. Journal of Dermatological Science, 86(2), 114 - 122. 2017
https://www.sciencedirect.com/science/article/abs/pii/S0923181117300269
Lee, Sunhyoung et al. Ganoderma lucidum extract attenuates corticotropin-releasing hormone-induced cellular senescence in human hair follicle cells. iScience 27(5), 2024https://pmc.ncbi.nlm.nih.gov/articles/PMC11068553/
Lingna Chen, Y.M.Y.F., et al. Cellular senescence: ageing and androgenetic alopecia. Dermatology, 239, 533-541. 2023.
https://karger.com/drm/article/239/4/533/836627/Cellular-Senescence-Ageing-and-Androgenetic
Bahta, Adiam W., et al. Premature Senescence of Balding Dermal Papilla Cells In Vitro Is Associated with p16INK4a Expression. Journal of Investigative Dermatology, 128(5), 1088 - 1094.2008.
https://www.jidonline.org/article/S0022-202X(15)33852-5/fulltext
Pappalardo, Alberto., et al. Restoration of hair follicle inductive properties by depletion of senescent cells. Aging cell, 24(1). 2025.
https://pubmed.ncbi.nlm.nih.gov/39614601/
Baar, Marjolein P et al. Targeted Apoptosis of Senescent Cells Restores Tissue Homeostasis in Response to Chemotoxicity and Aging. Cell, 169(1), 132-147. 2017.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5556182/