




✨ Transform thinning hair into thick, enviable volume—no filter needed!
Hairology Hair Building Thickening Fibers use natural keratin and oat protein fibers that magnetically attach to existing hair, instantly creating a fuller, thicker appearance. This 0.2 oz medium to dark blonde formula is paraben, gluten, sulfate, and cruelty-free, delivered via an easy-to-use pump spray. Designed for active lifestyles, it is smudge-proof, water-resistant, and made in the USA, providing a natural, long-lasting hair makeover for thinning hair.
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