Can I leave Olaplex No 3 in my hair overnight? How long should I leave it on?
The Original OLAPLEX Hair Perfector No. 3, Repairs & Strengthens All Hair Types #3, Take Home Number 3, 100ml / 3.3 oz (Pack of 1 w/ SLEEK Teasing Comb) - Walmart.com
Olaplex No. 3 Hair Perfector - Het Haartheater Amsterdam