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Its formula is nearly identical to the brands best-selling serum.

Shape / Getty

Hair loss can be devastating but its actually more common than youd think.

woman shampooing hair in the shower and smiling

Photo:Shape / Getty

In fact,more than 40 million men and 20 million womenin the United States deal with hair loss.

These key ingredients work together to fight breakage and boost circulation to stimulate hair follicles.

And thanks to its cold-processed method,these nourishing ingredients are preserved to remain effective for longer.

Stem Cell Shampoo

Act and Acre

Simply apply this strengthening formula to hair whenever needed to fight shedding, damaged, or dry strands.

Other customers raved that theyve noticed lots of new hair growth.

Revive your weakened strands with theAct + Acre Cold Processed Stem Cell Shampoofor $42.

Act + Acre Cold Processed Stem Cell Scalp Serum

Act + Acre

While youre at it, check out more hair growth treatments for fuller strands, below.

growth shampoo

Vegamour

Rosemary and Biotin Shampoo for Thinning Hair - Vegan Volumizing

Amazon

Rogaine 5% Minoxidil Foam

Amazon

Jennifer Aniston beside a lotion product

A set of images displaying a person in athletic wear and a pair of camo-patterned leggings

Hands touching nails focusing on nail health