This is not the best retinol I've ever used, but it is a fraction of the cost, which I love, and is a step up from other mid-range priced retinol serums. I know that the eye-dropper packaging is cost effective, but even stabilized retinol isn't a fan of air being introduced every use. I would pay a little more for an opaque pump bottle. All that being said, this is a good product and I will repurchase because the benefits greatly out-weigh the few cons.
Posted by iHerb Customer on October 18 2016 | Verified Purchase
Caused red bumps and breakouts, initially, thought it was merely purging impurities from clogged pores. After 2 weeks, problem persisted. Using aloe Vera gel or Marula oil on top of this serum didn't help either, to combat the dryness nor the breakouts. Very disappointed.
Posted by iHerb Customer on September 5 2016 | Verified Purchase
Although I was disappointed with the way it was marketed, certainly seemed to be deliberately misleading, I like the product. Smell is awful though. It is very strong, so only use a little.
Posted by potiholic on March 10 2018 | Verified Purchase
Far far away from Instanatural Retinol Serum. The Madre Labs one is too weak if we think in retinol action. I bought it with special prize, i think is very cheap when there are not promotions.
Posted by iHerb Customer on December 22 2017 | Verified Purchase
not use so long time
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