I’ve tried many products from The Ordinary and most of them are a hit - azelaic acid, niacinamide, NMF, granactive retinoid 2% and 5% in squalane, rosehip oil, glycolic acid, alpha arbutin, and ethylated ascorbic acid. I have repurchased the azelaic acid, niacinamide, NMF, alpha arbutin, and granactive retinoids a few times now. The Ordinary does a good job of providing skincare actives at a very affordable price point - and they are even having a month long sale in November to encourage intentional shopping! (This might be a marketing ploy but they got me!)
Their squalane cleanser was a bit of a letdown; it didn’t clean as well as my other oil cleansers. I also didn’t notice much from their caffeine solution but because their skincare is so affordable, I don’t mind trying a few things that may not end up working for me.