Formula ingredient

Don't rinse

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Products with Don't rinse

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Caffeine stimulating scalp treatment

The Inkey List

$17

An overnight hair growth serum that uses caffeine powder and an ingredient called Redensyl™ to help reduce hair loss by stimulating the scalp and hair follicles, therefore encouraging hair growth and helping to improve hair thickness. Consistent use every night over a 3 month period produces best results.

★ 4.4365 reviews