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. Niacinamide, on the other hand, reduces inflammation and boosts skin's natural moisturization.
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.
Can I use salicylic acid and niacinamide everyday? Yes you can, but always ensure you use them correctly to avoid unwanted reactions. You are safe to use both ingredients everyday once you have built a tolerance, especially to the potent BHA, salicylic acid.
Short answer is: Yes! You certainly can. To make niacinamide and AHAs/BHA work together, layer them on your cleansed face—just 30 minutes apart. You can also use them at different times of day, use niacinamide in the morning and AHAs/BHA at night.
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.
Niacinamide and salicylic acid are both great ingredients for treating acne and have a variety of other benefits as well. Salicylic acid is the better option for treating acne, while niacinamide is great for fading scarring and hyperpigmentation.
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.
But overall, stick to using water-based products and serums together. 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.
Salicylic acid may be used morning and night. Because it's so gentle, it may also be applied as a midday spot treatment.
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.
“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.
Use Salicylic Acid in the morning and Retinol at night. Those with more sensitive skin may need to use these products on alternate days, or reduce Salicylic Acid use to once a week or as and when needed.
Day or Night
One of the most popular Beta Hydroxy Acids (BHAs), salicylic acid is an ultra-common ingredient in many acne fighting products, and is well-suited for both day and night.
By using a salicylic acid enriched wash after cleansing the skin of any remaining makeup, you are helping to rid the skin of any dead skin cell build-up allowing any nourishing products applied afterwards to absorb quicker into the lower layers of the skin and show results quicker.
Don't Mix: Niacinamide and vitamin C. Although they're both antioxidants, vitamin C is one ingredient that's not compatible with niacinamide. "Both are very common antioxidants used in a variety of skincare products, but they should not be used one right after the other," says Dr. Marchbein.
"If salicylic acid is an ingredient in your cleanser, it is fine to use it every day." However, if you are using an exfoliant that salicylic acid in the formula, Dr. Hu advises only using the product three times per week, to avoid over-exfoliating the skin and drying it out.
Using products that contain both ingredients ensures a pH-balanced formulation and reduces some of the guesswork of layering products to achieve desired results. While it's safe to use salicylic acid and niacinamide together, Leung advises that it's best not to combine BHAs with other exfoliants or retinol.
Niacinamide can be used morning and night. Because it plays well with other skincare ingredients (even potentially tricky actives such as exfoliating acids and vitamin C) it will sit happily alongside anything else you're using.
Apply 2-3 drops after cleansing & toning. Let the serum absorb fully into the skin before moving on to the next step of your routine. When to use: PM. Start with every alternate day and after 2 weeks of usage, use it everyday.
You can use salicylic acid in the morning and at night. If you have oily or acne prone skin, you may need to cleanse with a salicylic acid cleanser in the morning and at night. I only cleanse once at night and that is enough for me.
Products that may cause purging
Retinoids such as Tretinoin, acids such as salicylic, and benzoyl peroxide are just a few of the products that cause purging. These products contain active ingredients that increase the skin cell turnover rate, therefore causing your skin to purge.
Niacinamide Serum – As most niacinamide serums are water-based, it's best to apply them after cleansing and toning and before oil-based serums or moisturizers. This way, you ensure the highest possible absorption and effectiveness. Cover your entire face with the serum, but feel free to concentrate on oily areas.
All of this wears at your skin cells and your skin's collagen." The answer: You need to cleanse and moisturize properly every morning with products that will protect your skin from these harmful external factors. Then at bedtime, the focus shifts. "At night, your skin repairs and recuperates.