Currently, it feels like there’s a product for every problem. Want to banish wrinkles? Reach for the retinol. Aiming to keep your skin supple and hydrated? Look for hyaluronic acid. Sometimes we tend to unintentionally mix certain products on our faces just because we want them to perform their different miracles on our faces at the same time but this is just a recipe for disaster. Here are 6 products that should never be combined; unless you want your face to be irritated.
1. Vitamin C + AHAs/BHAs
While vitamin C is branded as a vitamin, technically it’s an acid. Layering two acidic ingredients, like vitamin C with AHAs or BHAs, can lead to skin irritations including peeling and dryness. Teaming vitamin C with AHAs and BHAs also affects the efficiency of the ingredient, lowing the pH which can also result in redness and inflammation. That means if you do apply vitamin C with other acids, it will become completely useless and won’t have the chance to work its magic.
A good rule of thumb is to apply AHAs and BHAs at nighttime before bed, as they can make your skin more vulnerable to sunburn if applied during the day. Use vitamin C in the morning to lather your skin so the vitamin C benefits can soak into the skin all day. (Source: skinelite.com)
2. Benzoyl Peroxide + Retinol
Using these ingredients together deactivates the effect of the other. Applying benzoyl peroxide, which is an infamous acne treatment, along with retinol, will oxidise the retinol, hence reducing its effectiveness. Benzoyl Peroxide will oxidise Vitamin C the same way, hence, you’re highly advised to use these ingredients on alternate days. (Source: skintillatebeauty.com)
3. Vitamin C + Retinol
Retinols and vitamin C should not be used together. When used together they can cause skin irritation. Use vitamin C in the morning, and then your retinols at night—with cleansing between, of course. Retinol can make you photosensitive and Vitamin C works well when combined with sunscreen to combat free radical and photosensitivity.
4. Retinoid or Retinol and Salicylic Acid
In the effort to reduce the appearance of fine lines and wrinkles, you’ve probably been told to use a retinoid. To fight the good fight against acne, you may also use salicylic acid, a beta-hydroxy acid (BHA) that increases skin cell turnover, to keep pores clear. But on its own, each can dry out the skin, so together they should be combined with caution. The risk is overdrying, which can lead to irritation and make the situation worse. (Source: everydayhealth.com)
5. Retinol + Retinol
Perhaps this goes without saying, but we’ll say it anyway: Don’t layer multiple retinols. It probably won’t end well. To avoid inflaming your skin, use only one at a time. You’ll do more harm than good if you apply a retinol serum and top it off with retinol cream. You also might end up with a face that’s itchy for days. (Source: byrdie.com)
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