California Naturals ReGRO Anti-Thinning Scalp Serum 3 oz — 5% Capixyl with Biotin & Caffeine, Lightweight Non-Sticky Cooling Formu

ReGRO Anti-Thinning Scalp Serum is a lightweight, non-sticky 3 oz topical formula with 5% Capixyl plus biotin, caffeine and botanical oils designed to support fuller-looking hair and reduce breakage without heavy residue.

California Naturals created this scalp serum to offer a clean, effective alternative to expensive or harsh hair treatments. The concentrated formula combines a clinically studied peptide complex (Capixyl 5%) with caffeine, biotin, rosemary, castor and pumpkin seed oils to strengthen fragile strands, nourish the scalp, and create the sensation of lifted roots. It’s vegan, cruelty-free, free from sulfates, silicones, parabens and synthetic fragrances, and safe for use on color-treated and chemically processed hair.

How does this serum help hair that feels thin or brittle?

The serum targets multiple factors that make hair break or appear thin: it supplies strengthening nutrients, helps protect against brittleness, and supports a healthier scalp environment. With Capixyl at 5%, plus biotin and caffeine, the blend focuses on reinforcing strand structure and reducing breakage during styling or washing.

• 5% Capixyl peptide complex to support density and resilience
• Biotin to reduce brittleness and promote stronger strands
• Caffeine to invigorate the scalp and encourage better circulation
• Botanical oils (rosemary, castor, pumpkin seed) to nourish roots and add fullness

How do I use ReGRO serum in my routine?

The serum is designed for easy, targeted application directly to the scalp and works well as part of a weekly regimen. Apply to dry or towel-dried hair at the scalp, massage lightly to distribute, and leave it in—no rinsing required. For best results, follow the recommended frequency used in the brand’s clinical testing.

• Apply 4 times per week to the entire thinning area or scalp
• Massage gently to ensure even coverage and absorption
• Do not rinse out; style as usual after application
• Three bottles correspond to about three months of regular use

Will this serum feel sticky or weigh my hair down?

No—ReGRO uses a non-sticky, non-greasy base with a cooling finish so hair feels light after application. The formula is crafted to absorb at the scalp and avoid residue on hair lengths or roots, making it suitable for fine and thicker textures alike.

• Lightweight texture that glides on without tackiness
• Cooling sensation for a refreshed scalp feel
• Formulated to avoid heavy buildup on strands or roots
• Works under styling products and with extensions or color-treated hair

Is ReGRO safe for color-treated or chemically processed hair?

Yes—this serum is formulated to be gentle and free of sulfates, silicones, parabens and synthetic fragrances, making it compatible with color-treated and chemically processed hair. Always consult a physician if pregnant or breastfeeding before starting a new topical regimen.

• 98% naturally derived ingredients and clean formulation
• Vegan and Leaping Bunny certified—no animal testing
• Suitable for a wide range of textures and treatments
• Follow product instructions and consult a doctor when necessary

Who is this for: ReGRO Anti-Thinning Scalp Serum is intended for anyone noticing early thinning, increased shedding, brittle strands, or scalp imbalance—people with fine, chemical- or color-treated hair, postpartum shedding, breakage from tight styles, and those beginning a targeted scalp care routine will find it especially helpful. It’s also a good option for shoppers seeking a clean, cruelty-free alternative to heavy, sticky serums.