Be the first to experience - product GRATIS. 

Share your experience!

Products Available For Your Review

How SLK Reviewer Works


Select A Product

& Apply

See available skincare products in the gallery below. Apply after log- In. For those who selected, products to be delivered with email notification.

Observe 14-day Change

& Submit Review

Upon receiving, start applying on your skin for 14 days. Observe your skin change and email us complete review in the given form.


Your Review

We may use and share your review with our partners and certain third parties. We anonymized data to use. Read SLK Privacy Polcy

As Seen On Real User Reviews

For my sensitive skin, finding a correctly formulated AHA or BHA product is very difficult. I’ve swapped out my trusty Paula’s Choice for a Korean brand COSRX. Their excellent ingredients that only benefit skin moved me. To tell the truth, I don’t think I’m ever going back. 

Jude Chao, Editor

 For my acne-prone skin, there were a few recommended treatments by dermatologist, yes, but no silver bullet. COSRX Low pH Gel Cleanser is different. It got everything: a  natural BHA ingredient that washes off dead skin and sebum without taking the good oils with them. Low pH prevents from striping skin or mess with your hormonal issues. No artificial fragrances and it doesn’t foam up. And it takes off my makeup like a dream!

Lourdes Avila Uribe, University student