California Naturals Women's Re:GRO Anti-Thinning Scalp Serum, 5% Capixyl with Biotin, Caffeine & Castor and Rosemary Oil, Non-Sticky Cooling Formula, Vegan & Cruelty Free, 3oz We were tired of pricey treatments, harsh ingredients, and sticky serums—so we made something better. Re:GRO Anti-Thinning Scalp Serum is a clean, concentrated serum with 5% Capixyl, a clinically studied peptide complex shown to enhance hair density over time.* No toxins, no scary side effects—just real results powered by proven ingredients like caffeine, biotin, rosemary, and saw palmetto. This non-sticky, non-greasy serum glides on with a breezy, cooling finish that’s easy to apply and doesn’t weigh hair down. Good for: thinning hair and early signs of hair loss, weak, brittle, or breakage-prone strands, dry, oily, or unbalanced scalp conditions, tension from tight or protective hairstyles like braids, buns, weaves or ponytails, postpartum hair loss or stress-related shedding, starting a scalp care routine, safe for color-treated hair, chemically treated hair and hair extensions *Based on clinical study: 30+ panelists used Re:GRO Anti-Thinning Scalp Serum, Shampoo & Conditioner for 90 days. Consult your doctor if you are pregnant or breastfeeding Highlights CLINICALLY TESTED FOR FULLER, THICKER HAIR: 97% saw less breakage & stronger strands in a 90-day study. Use 4x/week for 12 weeks for fuller-looking hair with less shedding.* 3 bottles=3 months. 5% CAPIXYL, CAFFEINE & BIOTIN STRENGTHEN: Capixyl is clinically shown to support new growth & strengthen hair, caffeine wakes up follicles & boosts scalp circulation, & biotin reduces brittleness. BOTANICAL OILS NOURISH ROOT TO TIP: Rosemary & Castor Oil nourish the scalp & support fullness, Pumpkin Seed Oil promotes density, Saw Palmetto helps block DHT, & rice Silica instantly lifts roots. 98% NATURALLY DERIVED, NO HARSH STUFF: Clean, safe, & effective - no sulfates, parabens, silicones, phthalates, or synthetic fragrance. Vegan & Leaping Bunny certified. Woman-led, made in California. FOR ALL HAIR TYPES, B CORP CERTIFIED: Formulated for every hair type & texture. Recommended for thinning hair, postpartum hair loss, fine or brittle strands, etc. Safe for color-treated hair. Product Details Brand: California Naturals Size / count: 3oz Category: Hair Regrowth Treatments Department: Beauty & Personal Care / Hair Care / Hair Loss Products / Hair Regrowth Treatments Customer rating: 4.1/5 from 108 reviews Buyer demand: 1K+ bought in past month Availability: In Stock Prime eligible: No Unit price: 5.7 USD / ounce Source ASIN: B0FTKW2PWF