living proof
PhD Perfect Hair Day 5-in-1 Styling Treatment
$36.00
Available at 3 stores
Prices as of September 25, 2026, as listed by each retailer — verify the current price on the retailer's site before purchase.
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NatureLab Tokyo Saisei Stress Defense Amino Acid Shampoo is a gentle, sulfate-free formula designed to cleanse the hair and scalp without stripping natural moisture. Made with amino acid and coconut-based surfactants, it helps maintain hydration while strengthening roots and reducing breakage. Key ingredients like black spruce bark extract, apple extract, and alpine rose extract support scalp health, protect against UV and environmental damage, and help preserve hair thickness and color. The shampoo features a refreshing floral green fragrance inspired by Japanese iris and is suitable for daily use across all hair textures, particularly those experiencing thinning or texture changes.
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