Here are The Ordinary bestsellers that I recommend : The Ordinary AHA 30% + BHA 2% Peeling Solution 7,2€: the number of times someone searches "the ordinary peeling in stock", "the ordinary peeling available" shows how much this product is in vogue and often out of stock. Don't worry, it is still available on the official website for the modest sum of 7,2€ ~> The Ordinary link <~ and here is the Lookfantastic link, FeelUnique link, you never know.. At worst, you can buy his Korean dupe : Red Peel from the brand So Natural, less aggressive too (Yesstyle link) The Ordinary Niacinamide 10% + Zinc 1% 5.9€ : THE anti-imperfections serum par excellence. Take a look at my before/after 6 months photos and you will understand why. The Ordinary link, Sephora link, FeelUnique link 100% Niacinamide Powder 5,8€ : for those who don't like zinc in the Niacinamide serum, the brand has just released a powder version that contains only niacinamide, to mix with your serum or moisturizer. The Ordinary link The Ordinary Hyaluronic Acid 2% + B5 6,8€ : Being in the Allure top ranked cosmetics, it is a serum supposed to be very hydrating thanks to the hyaluronic acid and allowing to rebuild the barrier of the skin thanks to the Vitamin B5. Personally, I'm not convinced but many people love it. Available on The Ordinary The Ordinary Amino Acids + B5 6,8€ : It's a better moisturizing choice, I find. More moisturizing and doesn't peel. The Ordinary link The Ordinary “Buffet” + Copper Peptides 1% 28,9€ : Extremely well formulated, this serum is expensive because copper peptides are out of price. Excellent against redness, aggressions caused by the cold or pimples. Not to be confused with the "Buffet" version which makes face hair grow. The Ordinary link The Ordinary Glycolic Acid 7% Toning Solution 8,7€ : The Ordinary fans use it in a roundabout way because it's too strong to be used on the face regularly. Its XXL format allows it to be used for the armpits! It kills the bacteria responsible for the bad smell, so you continue to sweat but without any smell. It also works very well against acne in the back, arms and keratosis hair. At this price and especially for this size (240ml please), you really should try it. The Ordinary link