What Not to Mix with Benzoyl Peroxide: The Ultimate Guide

Benzoyl peroxide is a great over-the-counter acne treatment that you can combine with tons of other skincare products:

• Salicylic acid: to fight breakouts and blackheads

• Vitamin C: to treat uneven skin tone

• Retinol: to treat signs of aging and acne

That said, there’s a right way and a wrong way to use these combinations.

In this article, I’ll explain everything you need to know about mixing skincare ingredients with benzoyl peroxide and how to do it safely.

Can I use benzoyl peroxide with niacinamide?

Yes, you can use benzoyl peroxide with niacinamide.

Niacinamide is a powerful ingredient in skincare. Studies show that it can:

• Control excess sebum production

• Soothe inflammation and skin irritation

• Support skin barrier function

• Reduce the appearance of fine lines and wrinkles

Since it can help control oil production, niacinamide is a key ingredient to use in your skincare routine alongside benzoyl peroxide to treat acne.

Can you use benzoyl peroxide with salicylic acid?

Yes, studies show that you can use benzoyl peroxide products along with beta hydroxy acids like salicylic acid in your skincare routine to effectively treat acne-prone skin.

While benzoyl peroxide works by killing off acne-causing bacteria, salicylic acid works by unclogging your pores.

That said, both ingredients can cause side effects like skin irritation.

To use benzoyl peroxide and salicylic acid together safely, choose one of the following options:

• Use benzoyl peroxide and salicylic acid products on alternate days

• Use a leave-on salicylic acid product in the morning and a leave-on benzoyl peroxide product at night

• Wash your face with a salicylic acid cleanser and then use a leave-on benzoyl peroxide gel, or vice versa

Try to avoid layering leave-on benzoyl peroxide products on top of salicylic acid products to avoid compromising your skin barrier.

Further, just be aware that both salicylic acid and benzoyl peroxide can cause purging.

Can you use benzoyl peroxide with hyaluronic acid?

Yes, you can benzoyl peroxide with hyaluronic acid. The two are a powerful combination for treating your skin.

Hyaluronic acid is essential to help your skin maintain its elasticity and hydration. Because strong acne-fighting ingredients like benzoyl peroxide can cause excessive dryness, they can often disrupt your skin barrier.

By using hyaluronic acid alongside benzoyl peroxide, you can effectively treat acne and keep your skin healthy.

Can you use benzoyl peroxide with tretinoin?

Yes, you can use benzoyl peroxide with tretinoin to treat acne and signs of aging.

While benzoyl peroxide works by killing off acne-causing bacteria, tretinoin works by speeding up skin cell turnover and unclogging your pores.

That said, both ingredients can cause side effects like skin irritation, especially for people with sensitive skin.

To use benzoyl peroxide and tretinoin together safely, choose one of the following options:

• Use benzoyl peroxide and tretinoin on alternate nights

• Use a leave-on benzoyl peroxide product in the morning and apply tretinoin at night

• Wash your face with a benzoyl peroxide cleanser and then apply tretinoin at night

Remember, tretinoin degrades under sunlight, so you can only use it in your evening skin care routine.

Just be aware that while you can get benzoyl peroxide over the counter, you will need to see a board-certified dermatologist to get a prescription for tretinoin.

Can you use benzoyl peroxide with retinol?

Yes, you can use benzoyl peroxide with retinol to treat acne and signs of aging.

While benzoyl peroxide works by killing off acne-causing bacteria, retinol works by speeding up skin cell turnover and unclogging your pores.

That said, both ingredients can cause side effects like skin irritation, especially for people with sensitive skin.

To use benzoyl peroxide and retinol together safely, choose one of the following options:

• Use benzoyl peroxide and retinol on alternate nights

• Use a leave-on benzoyl peroxide product in the morning and apply retinol at night

• Wash your face with a benzoyl peroxide cleanser and then apply retinol at night

Remember, retinol (like tretinoin!) degrades under sunlight, so you can only use it in your evening skincare routine.

Thankfully, unlike tretinoin, you can get retinol over the counter.

Can you use benzoyl peroxide and vitamin C?

Yes, you can use benzoyl peroxide with vitamin C.

That said, it’s probably not a good idea to layer them together due to concerns for irritation.

For best results, try wearing your vitamin C serum in the morning and using a benzoyl peroxide cleanser like PanOxyl 4% or 10% at night.

Can you use benzoyl peroxide with alpha hydroxy acids?

Yes, you can use benzoyl peroxide and alpha hydroxy acids in your skincare routine. The most common alpha hydroxy acids include:

• glycolic acid

• lactic acid

• and mandelic acid

While benzoyl peroxide works by killing off acne-causing bacteria, alpha hydroxy acids work by speeding up skin cell turnover and exfoliating your stratum corneum.

That said, both ingredients can cause side effects like skin irritation.

To use benzoyl peroxide and alpha hydroxy acids together safely, choose one of the following options:

• Use benzoyl peroxide and salicylic acid products on alternate nights

• Use a leave-on benzoyl peroxide product in the morning and an AHA product at night

• Wash your face with an AHA cleanser and then use a leave-on benzoyl peroxide gel at night, or vice versa

Try to avoid layering leave-on benzoyl peroxide products on top of AHAs to avoid compromising your skin barrier.

Can you use PanOxyl and Differin together?

Yes, you can use benzoyl peroxide with Differin or adapalene to treat acne and skin texture.

While benzoyl peroxide works by killing off acne-causing bacteria, adapalene works by speeding up skin cell turnover and unclogging your pores.

That said, both ingredients can cause side effects like skin irritation, especially for people with sensitive skin.

To use benzoyl peroxide and adapalene together safely, choose one of the following options:

• Use benzoyl peroxide and adapalene on alternate nights

• Use a leave-on benzoyl peroxide product in the morning and apply adapalene at night

• Wash your face with a benzoyl peroxide cleanser and then apply adapalene at night

Remember, adapalene (like tretinoin and retinol!) degrades under sunlight, so you can only use it in your evening skincare routine.

Thankfully, unlike tretinoin, you can get Differin over the counter.

Can you use benzoyl peroxide with moisturizer?

Yes, you can and should use benzoyl peroxide with moisturizers.

Since benzoyl peroxide products intended for acne-prone skin can be drying, the best moisturizer to use with PanOxyl needs nourishing ingredients like:

• ceramides

• cholesterol

• essential fatty acids like vitamin E oil

• humectants like glycerin and hyaluronic acid

Be sure to apply moisturizer any time you use benzoyl peroxide, even if only in a cleanser like PanOxyl.

What can you use with PanOxyl?

Because PanOxyl contains benzoyl peroxide which can cause excessive dryness, you can use any nourishing and hydrating ingredients with it.

Looking for ingredients in skincare products like:

• hyaluronic acid

• glycerin

• ceramides

• aloe vera

• niacinamide

• cholesterol

• fatty acids

and more!

The Bottom Line: Mixing Skincare Ingredients with Benzoyl Peroxide

Benzoyl peroxide is one of the best acne treatments, and you can safely combine it with other treatments by alternating days.

Some of the best treatments to use with benzoyl peroxide include:

• vitamin C

• retinol

• azelaic acid

• and salicylic acid

Further, because benzoyl peroxide can cause dryness and irritation, be sure to use nourishing ingredients alongside it like niacinamide, ceramides, and moisturizing ingredients.

Try it out for three months, and you’ll notice the difference for yourself!

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