AHAs and BHAs, such as glycolic, salicylic, and lactic acids should never be used with Vitamin C. Vitamin C is an acid, too, and is unstable, so the pH balance will be thrown off by layering these ingredients together and might as well be useless.
Niacinamide & Salicylic Acid
Niacinamide, a water-soluble form of vitamin B3, and salicylic acid, a beta-hydroxy acid, work particularly well when combined together. Both have anti-aging and anti-acne effects and offer some level of UV protection.
“AHAs and BHAs can certainly be combined. For example, for oily skin, a salicylic-based cleanser can be used followed by a glycolic acid toner. Generally, a glycolic acid is great for dry, dehydrated or combination skin, whereas salicylic acid would be perfect for oily/spot-prone/acne skin.
Can niacinamide and salicylic acid be used together? The simple answer is yes. They complement each other well. Being oil soluble, salicylic acid can penetrate deeper into the skin layers, but it can also dehydrate and irritate skin.
It is considered the best idea to apply niacinamide before salicylic acid. This is because the humectant traits of niacinamide ensure the natural skin barrier contains the correct levels of water. When the skin barrier is moisturised and healthy it can keep itself protected from exposure to free radical damage.
Niacinamide tends to work best in an environment with a neutral pH and because salicylic acid is, well, an acid it does not have a netural pH – it has an acidic one. If you want to use them both one after the other, the best thing to do is apply your salicylic acid, wait 10-30 minutes then apply your niacinamide.
Salicylic acid and vitamin C are both effective products on their own but, when combined, they can be even more beneficial. Whether you're looking to brighten your skin, reduce the likelihood of blemishes or just help slow down the skin's natural aging process, these ingredients may be just what you're looking for.
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.
Can I apply moisturizer after using salicylic acid? Yes. Moisturizers can help hydrate and repair skin, making it a good step to do after using an exfoliating treatment with salicylic acid.
Luckily for us, yes, niacinamide is perfectly safe to use with salicylic acid due to the fact it contains humectant properties. This allows the ingredient to absorb moisture from the surrounding atmosphere and other product formulas and locking them into the different layers of the skin.
Absolutely, hyaluronic acid and salicylic acid are perfectly safe to use together. This is because, although they are both carry the name acid, they do in fact work very differently on the skin. Hyaluronic acid is a highly effective skin ingredient because of the humectant properties it contains.
Can I moisturise after salicylic acid? Absolutely, if anything I strongly suggest moisturising after using salicylic acid. Not only will this soothe and calm the skin after applying the potent BHA to your skin.
“You can use a salicylic acid–based cleanser in the morning to unclog pores and avoid acne and a glycolic acid–based cleanser at night to exfoliate your skin and get rid of dead skin cells,” notes Jailman.
I started applying salicylic acid after the cleansing and toning steps and before moisturising. It is important that you let your skin absorb the product. While applying salicylic acid, I massage the product into my skin in a circular motion. I also make sure to keep the product away from my eyes and mouth.
Don't Mix: Retinol with vitamin C, benzoyl peroxide, and AHA/BHA acids. AHA and BHA acids are exfoliating, which can dry out skin and cause further irritation if your skincare routine already includes retinol.
Can glycolic acid be mixed with salicylic acid? You can certainly use glycolic acid and salicylic acid together, but we would suggest avoiding mixing them together. This is because combining such potent ingredients will cause a severe reaction to the skin, as well as potentially damaging the skin barrier.
Yes, you can, BUT you will get better results if you use vitamin C and glycolic acid/salicyclic acid separately. We recommend using vitamin C in the morning and your AHA or BHA at night.
Apply a small amount of medicine to the affected area and rub in gently. If using the pads, wash the affected skin with a mild cleanser, then pat dry. Wipe the pad gently onto the skin to apply the medication, usually 1 to 3 times a day or as directed by your doctor. Wash hands after use.
Which of these products can be used after the AHA peeling solution? You're welcome to apply Alpha-Arbutin or Niacinamide after the Peeling Solution.
Can I use salicylic acid, niacinamide, and hyaluronic acid together? You can indeed! The main benefit of using niacinamide and hyaluronic acid together is their ability to provide hydration and protection for the skin.
Both mandelic acid and salicylic acid should be applied to dry skin a maximum of three times per week to avoid irritation. If your skin isn't particularly sensitive then you can use both exfoliants together, although it's better to use a multi-ingredient product than to layer mandelic acid and salicylic acid yourself.
Using both together will however can become too much for the skin and lead to irritation, rashes, redness, flakiness and all-round discomfort. Much like vitamin C and niacinamide, if you are wanting to use both separate the products completely and apply salicylic acid in the morning and retinol for the evening.
Salicylic acid works best on blackheads and whiteheads.
"Salicylic acid helps with the first cause by dissolving the type of skin debris that clogs pores and causes acne," he says. Therefore, salicylic acid is ideal for treating blackheads and whiteheads.
Benzoyl Peroxide + AHAs/BHAs (Exfoliating Acids)
Both salicylic acid (a BHA) and benzoyl peroxide are effective against acne, but using them at the same time can lead to excessively dry skin. Try using them on alternating nights instead for an equally effective anti-acne regimen!
It is safe to use products with salicylic acid every day, unless it is specified otherwise on the product usage guidelines or by your health care professional. CeraVe's SA Smoothing Cream and SA Smoothing Cleanser are suitable for daily use.