(TrendHunter.com) Biological pigmentation control is reshaping how skincare brands approach uneven skin tone by targeting its root causes rather than relying on harsh surface treatments. Chemyunion’s Peptid4®…(TrendHunter.com) Biological pigmentation control is reshaping how skincare brands approach uneven skin tone by targeting its root causes rather than relying on harsh surface treatments. Chemyunion’s Peptid4®…