(TrendHunter.com) Clarins’ Double Serum Foundation is a new launch inspired by the brand’s Double Serum, and this hybrid serum foundation makes the most of a dual-chamber component that houses two-thirds makeup and…(TrendHunter.com) Clarins’ Double Serum Foundation is a new launch inspired by the brand’s Double Serum, and this hybrid serum foundation makes the most of a dual-chamber component that houses two-thirds makeup and…