Hair Growth Serum
A topical hair growth serum packed with natural botanicals, extracts, peptides, and proteins to stimulate hair follicles, encourage hair growth, and improve overall scalp health.
Clinically studied complexes like Redensyl™, Capixyl™, and Procapil™ help tackle hair loss at its roots, while extracts from saw palmetto and rosemary help encourage new levels of hair growth.
A lightweight topical that is easy to apply, dries quickly, and is formulated with slow-drip viscosity. This is a best-in-class serum, made with the top natural ingredients and at doses supported by science.
How it works
Select the treatment that meets your needs. If you’re unsure, take our Treatment Recommendation Quiz to narrow down your options.
After choosing a treatment, complete your purchase to start the medical evaluation. You’ll receive a medical intake form to complete. You'll be assigned a doctor after completing the form, usually within an hour. At this point, you can send any questions or concerns directly to your doctor.
Your provider will review your information, confirm your prescription, and address your inquiries.
Once approved, the prescription will be sent to the pharmacy, who'll compound and ship your treatment straight to your door.
Directions
Ingredients
Key Ingredients (Click To Expand)
-
Redensyl (3%), Capixyl (5%), & Procapil (5%)
Redensyl™, Capixyl™, & Procapil™ are three trademarked blends of natural extracts, peptides, and polyphenols for hair growth. In a landmark six-month clinical study, topical Redensyl™, Capixyl™, & Procapil™ improved hair loss better than 5% minoxidil in terms of global photographs and investigator assessments – making it a staple combo for any hair serum that’s serious about growing your hair. At Ulo, we include Redensyl™, Capixyl™, & Procapil™ at their studied concentrations – so you can get growing with our easy-to-apply, best-in-class formulation. -
Saw Palmetto (2%)
Saw palmetto is extracted from the Serenoa repens plant, and is one of the world’s best-studied extracts for natural hair growth. In one study, researchers found that 90% of saw palmetto users experienced hair loss stabilization. In another study, both oral and topical saw palmetto improved hair growth – with the combination of the two yielding the biggest hair gains. At Ulo, we include saw palmetto in both our hair supplement and serum, so your hair can leverage the benefits of this natural extract every single day. -
Rosemary Oil (2%)
Rosemary oil, extracted from the rosemary plant, has been used for centuries for its anti-inflammatory, antimicrobial benefits. More recently, a six-month clinical study found rosemary oil to be as effective as 2% minoxidil at promoting hair growth. With each application of Ulo’s hair serum, you’re giving your scalp & hair a healthy dose of rosemary oil – all in an effort to support your hair goals for the years to come. -
Adenosine (0.75%) (US Only)
Adenosine is a naturally-occurring substance found in all cells of the body. At the right concentrations, studies in men suggest that topical adenosine might rival the hair growth-promoting effects of minoxidil. In men and women, topical adenosine might improve hair thickness over 12-month timeframes. At Ulo, our hair serum includes adenosine at clinically-studied concentrations, all to put your hair in the best fighting position for success. -
Melatonin (0.01%) (US Only)
Melatonin is a potent antioxidant that protects hair follicles from oxidative stress. Clinical studies suggest that topical melatonin improves hair density and reduces shedding –– making it a powerful add-on ingredient to Ulo’s prescription topicals. Using scientifically-supported, precision-dosing, this concentration of melatonin is here to awaken your hair follicles, without altering your sleep. So you can rest easy knowing bigger hair gains are right around the corner. -
L-Carnitine L-Tartrate (2%)
L-Carnitine L-Tartrate is an amino acid that, according to clinical studies, may improve exercise recovery and reduce fatigue. There’s also research suggesting that oral and topical l-carnitine – when paired with other nutrients – may support hair growth by reducing inflammation around the hair follicles. At Ulo, we include l-carnitine in our hair serums and supplements to support those taking a holistic approach to hair health.
All Ingredients
Water (Aqua), Capixyl™ (Butylene Glycol, Dextran, Acetyl Tetrapeptide-3, Trifolium Pratense (Clover) Extract), Redensyl™ (Glycerin, Sodium Metabisulfite, Larix Europaea Wood Extract, Glycine, Zinc Chloride, Camellia Sinensis Leaf Extract), Procapil™ (Butylene Glycol, PPG-26-Buteth-26, PEG-40 Hydrogenated Castor Oil, Apigenin, Oleanolic Acid, Biotinoyl Tripeptide-1), Serenoa Serrulata Fruit Extract, Rosmarinus Officinalis (Rosemary) Leaf Extract, Carnitine Tartrate, Lysine, Taurine, Cysteine, Methionine, Benzyl Alcohol, Adenosine (US only), Polysorbate 20, Sodium Phytate, Caffeine, Mentha Piperita (Peppermint) Oil, Benzoic Acid, Tussilago Farfara (Coltsfoot) Flower Extract, Achillea Millefolium Extract, Cinchona Succirubra Bark Extract, Sodium Lactate, Guar Hydroxypropyltrimonium Chloride, Sorbic Acid, Sodium PCA, PCA, Arginine, Aspartic Acid, Melatonin (US Only), SD Alcohol 40-B, Methyl Nicotinate, Valine, Proline, Threonine, Isoleucine, Histidine, Phenylalanine, Alanine, Serine, Quaternium-51
Need help?
Not sure where to begin?
Take our questionnaire to receive personalized product recommendations tailored to your needs. Click here to start.
Explore Our Top Treatment Plans
Click here to check out our most popular and trusted treatment plans!
Still have questions? We're here to help.
Reach out by filling out our contact form or emailing us at concierge@ulo.co. We'll respond promptly!

Ingredients







Keep out of reach of children and pets.
This statement has not been evaluated by the Food and Drug Administration.
This product is not intended to diagnose, treat, cure, and/or prevent any disease.
Manufactured in the USA using globally sourced ingredients for ULO LLC
Dover, Delaware, 19904




Prescriptions and support from licensed providers
Receive personalized, ongoing care and guidance from experienced licensed providers, ensuring support and expertise are always available across all 50 states.


Certified U.S.-based pharmacies
Your medication is filled by trusted U.S.-based pharmacies, ensuring quality and reliability, with discreet shipping right to your door.


Clinically proven ingredients
Doctor-recommended and clinically tested ingredients, crafted into personalized treatments tailored specifically for you.


Private care, 100% online
Skip the in-person visits. Manage your treatment conveniently through the app with a secure and private login