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 February 2 2018 | Verified Purchase
I wouldn't even give this one star. I stored this item properly and opened it before the best before date. It has gone rancid - a yellow brown colour and strong smell, liquids separated and lumpy. I wouldn't put this on my face. I requested for a refund a week ago, the customer service agent said she will get back to me after contacting the company but she did not. First - the company isn't responding to iHerb? Second - I should get a refund without an update from the company anyways.