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Performance-Driven Trust
Science-Backed Scalp Care That Performs
Each REIN product undergoes third-party testing and dermatologist review to ensure clean, effective hydration for your scalp. With fermented rice water as our hero ingredient, our formulas strengthen, soothe, and restore scalp balance. The foundation of every healthy hair routine.






REINSHINE Ultimate Hair Serum
- Hydrates & Restores: Bioactive rice water strengthens the scalp’s natural barrier and replenishes moisture.
- Soothes & Balances: Fermented botanicals calm irritation and regulate scalp oil production.
- Strengthens from the Root: Peptides and ginseng fortify follicles for long-term resilience.
- Protects Daily: Shields against UV rays, pollution, and buildup for healthier growth.
- Promotes Shine & Growth: The REINSHINE™ compound delivers visibly stronger, fuller, glossier hair.
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THE BIO-FERMENTED COMPOUND THAT GIVES REIN ITS MAGIC
Ultimate Hair Serum
your new daily ritual for scalp and hair resilience. Formulated with our signature bio-fermented complex, this serum helps protect against pollution, UV rays, and everyday stressors that can leave your scalp dry, irritated, or flaky. Bioactive Rice Water, Fermented Botanicals, and Peptides work together to hydrate deeply, soothe irritation, balance oil production, and strengthen hair right at the root. The result? A healthy scalp foundation that supports shiny, resilient hair from day one.

Bioactive Rice Water:
Hydrates and strengthens the scalp’s natural barrier.

Fermented Ginger Extract:
Calms irritation and boosts circulation.

Fermented Saw Palmetto:
Balances scalp oil and DHT for fuller hair.

Fermented Ginseng Extract:
Neutralizes free radicals and supports growth.

Fermented Green Tea Extract:
Defends against pollution and oxidative stress.

Fermented Peptides:
Repair and fortify the scalp for long-term resilience.
Strengthen, Nourish, Reinforce
How To Use REIN

Apply to damp or dry hair

Distribute evenly

Style as usual










