That’s why we recommend introducing one product at a time. Our recommendations are meant to serve as a preventative measure to avoid any incompatibility between those combinations (due to various concentrations and formats offered within our range) and also because skin tolerance is subjective. Read how to patch test The Ordinary here. In reality, the majority of people will not bother patch testing, but you have been warned! What it is: an extract derived from bearberry leaves. You do not pay a penny more, nor are you obliged to use them, but if you do your support is greatly appreciated. Read how to patch test The Ordinary here. Deciem Responses Regarding Conflicts & The Ordinary Products You Can & Cannot Mix Why can´t I now use Vitamin C derivatives with Niacinamide? Some people leave this as their very last step. It’s nicknamed “natural hydroquinone” … If you decide to combine this masque with other direct acids, we recommend you perform a patch test of the combination prior to full facial application. Always read the instructions before using and patch testing is highly recommended. By Prudvi at Deciem. Chief Scientific Officer at Deciem explaining why certain products shouldn´t be used together. These products cause a bit of confusion with good reason. ... Niacinamide 10% + Zinc 1% 30ml Alpha Arbutin 2% + HA 30ml SPF 50 sunscreen Eucerin. If a product has too many conflicts, for example, Buffet + Copper Peptides, then you could make life really difficult for yourself by trying to figure out a regimen on your own, especially if you have already bought lots of products. Yes, you can. Add number 2 to all these products if you have them. At low pH, the peptides undergo processes such as deamination (the removal of an amide group) and oxidation, which compromise the activity of the peptides. A weak acid, L-Ascorbic Acid is the pure form of vitamin C. ... Or you can use salicylic acid every morning and alternate benzoyl peroxide and retinoids at night. Oils should be applied after water solutions but before creams/emulsions. Our recommendations are meant to serve as a preventative measure to avoid any incompatibility between those combinations and also because skin tolerance is subjective. Deciem advises patch testing products before using on your face. You will end with lots of products that conflict and not enough time to use them all. See what works for you. Arbutin. Prudvi from Deciem says: We would not recommend combining direct acids with peptides due to the susceptibility of peptides to hydrolysis (which breaks the bonds between peptides, reducing their efficacy and making them into individual amino acids). High-Spreadability Fluid Primer (last step before makeup), Mineral UV Filters SPF 15 with Antioxidants, Mineral UV Filters SPF 30 with Antioxidants, High-Adherence Silicone Primer (last step before makeup). *there are 2 powder form products. We do not recommend combining Vitamin C (L-Ascorbic Acid, Ethylated L-Ascorbic Acid or Vitamin C Derivatives) with Niacinamide with Direct or Ethylated Vitamin C, and Vitamin C Derivatives due to the formation of a salt complex that has the potential to reduce the integrity of both compounds. This is the order, but it doesn’t mean you have to always use all 4 of them, 1+2+3+4. Deciem recommends oils before heavy creams like Natural Moisturising Factors. If you use 3 products all at once for the first time and your skin has a reaction, how will you know which product caused it? To remain independent affiliate links are used. By Prudvi: Having said that, if you have previously combined peptides with acids and have not experienced any negative side effects or discoloration, you may continue to combine the two products as so as the combination does not pose any potential harm. The Ordinary Products You Can & Cannot Mix Guide, The Ordinary Quick Starter Guide – The Beginner´s Guide To The Ordinary, The Ordinary Products, Targets & Conflicts Guide, The Best Ordinary Products Voted By Deciem Addicts, Deciem AMA on Reddit – Your FAQs Answered by Prudvi, The Ordinary General Signs Of Ageing Regimen Guide, The Ordinary Textural Irregularities Regimen Guide, The Ordinary Look of Blemishes & Congestion Regimen, Best products for fine lines, wrinkles, pigmentation, dark spots & more, NIOD CAIL Copper Amino Isolate Lipid Reviews & FAQ’s, The Ordinary Buffet + Copper Peptides Reviews & FAQ’s, The Ordinary AHA 30% + BHA 2% Reviews & FAQ’s, The Ordinary Azelaic Acid Reviews & FAQ’s, The Ordinary Alpha Lipoic Acid Reviews & FAQ’s, The Ordinary Glycolic Acid Reviews & FAQ’s, The Ordinary Lactic Acid 10% Reviews & FAQ’s, The Ordinary Mandelic Acid Reviews & FAQ’s, The Ordinary Salicylic Acid Masque Reviews & FAQ’s, Resveratrol & Ferulic Acid Reviews & FAQ’s, The Ordinary Niacinamide Powder Reviews & FAQ’s, The Ordinary Vs Hylamide Vs NIOD – Deciem Alternatives to The Ordinary, Personalised routines in the Facebook Group, NIOD & Hylamide routines.