igk hair
Cash In Instant Repair Serum 1.7 oz.
$36.00
Available at 2 stores
Prices as of September 26, 2026, as listed by each retailer — verify the current price on the retailer's site before purchase.
Price history tracked at Bloomingdale's price trackerMacy's price tracker
Christophe Robin Fortifying Scalp Serum is a lightweight, fast-absorbing treatment designed for daily use to strengthen hair from the roots and reduce hair loss due to breakage. Formulated with amaranth peptides, caffeine, biomimetic peptide, red clover extract, and hyaluronic acid, it supports healthier-looking, fuller, and more resilient strands while hydrating the scalp. Suitable for all hair types, especially thinning or breakage-prone hair, it improves visible hair density and promotes stronger, thicker hair over time. Apply directly to the scalp on dry or towel-dried hair, massage in, and smooth through lengths—no rinsing required.
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