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Salicylic Acid vs. Benzoyl Peroxide: Which Acne Fighter is Best for You?

Salicylic Acid vs. Benzoyl Peroxide: Which Acne Fighter is Best for You?

02/19/25

Salicylic Acid vs. Benzoyl Peroxide: Which Acne Fighter is Best for You?

At Soma we know not all acne treatments are created equal. In the world of acne treatments there are typically 2 star ingredients that effectively tackle breakouts. Those two powerful ingredients are Salicylic acid and benzol Peroxide. While these are both great ingredients, they serve different purposes and work best for specific concerns. In this blog we will discuss how these ingredients work, their benefits and help you decide if they are right for you.

First Salicylic Acid

Salicylic acid, a beta-hydroxy acid (BHA), is one of the most effective exfoliants in skincare. It’s oil-soluble, meaning it penetrates deep into the pores to unclog debris, reduce excess sebum, and promote clearer skin. One of our favorite iS Clinical products is  Active Serum this product contains this amazing ingredient and more! Active Serum is a potent cocktail of AHA, BHA and Mushroom. Pro Tip: Use Active serum at night and wake up with glowing skin.
As a standalone ingredient Salicylic Acid (BHA) does the following for skin:
  • Unclogs Pores: Salicylic acid dissolves dead skin cells and oil buildup that cause blackheads and whiteheads.
  • Reduces Oiliness: It controls excess sebum production, making it ideal for oily skin types.
  • Soothes Inflammation: With its anti-inflammatory properties, salicylic acid calms redness and irritation.
Recommended concentrations are between 0.5 % and 2% depending on your skin type and concerns.

Who It’s For

  • Individuals with blackheads, whiteheads, and clogged pores.
  • Those with oily or combination skin looking for a gentle exfoliant.

Tried-and-true Benzoyl peroxide

Benzoyl peroxide targets inflammatory acne (red, swollen pimples) by killing acne-causing bacteria (P. acnes). Unlike salicylic acid, which focuses on exfoliation, benzoyl peroxide eliminates bacteria to prevent future breakouts. At Soma we are really loving PCA BPO 5% this cleanser eliminates existing and prevents future acne breakouts.
It also has Instant antibacterial and exfoliation benefits, and a host of botanical extracts calm and soothe acneic skin. PRO TIP: Start off once a day or once every other day to avoid dying out your skin.

What It Does

  • Kills Bacteria: Benzoyl peroxide works on the surface of the skin to destroy acne-causing bacteria.
  • Prevents Breakouts: By reducing bacteria, it stops new acne from forming.
  • Clears Existing Acne: Its drying effect quickly reduces the size of pimples.
For most clients, we suggest starting with a 2.5% benzoyl peroxide formula to minimize irritation. For moderate to severe acne, higher concentrations like 5% or 10% may be appropriate. Our team can guide you toward the right product for your skin type.
Who It’s For
  • Those with red, inflamed, or cystic acne.
  • People looking for a fast-acting solution to reduce active breakouts.

The Key differences in these ingredients:

Feature
Salicylic Acid
Benzoyl Peroxide
Primary Function
Exfoliates and unclogs pores
Kills acne-causing bacteria
Best For
Blackheads, whiteheads, and clogged pores
Inflammatory acne, swollen pimples
Concentration Range
0.5% to 2%
2.5% to 10%
Skin Type
Sensitive, oily, or combination skin
Acne-prone or resilient skin
Side Effects
Mild irritation or dryness
Redness, peeling, or dryness
 

Can You Use Them Together?

Yes! Salicylic acid and benzoyl peroxide can work together, but it’s essential to use them strategically to avoid irritation. At Soma Medical Spa, we recommend:
  • Morning Routine: Use a salicylic acid-based cleanser or toner to unclog pores and reduce oil production throughout the day.
  • Evening Routine: Apply benzoyl peroxide as a spot treatment or cleanser to target active breakouts.
Our experienced estheticians can help you create a personalized skincare routine that safely incorporates both ingredients for maximum effectiveness.

Tips for starting products with these ingredients.

  • Start with lower concentrations (0.5% salicylic acid or 2.5% benzoyl peroxide) if you’re new to these ingredients.
  • Always patch test before introducing a new product to your routine.
  • Pair these treatments with a broad-spectrum sunscreen (we love EltaMD SPF) during the day to protect your skin.
  • Moisturize! Ingredients like hyaluronic acid or ceramides can help maintain your skin barrier and prevent dryness.

Why Choose Soma Medical Spa for Your Skincare Needs?

  • At Soma Medical Spa in Glendale, CA, we specialize in tailoring skincare treatments to your unique needs. From medical-grade products containing salicylic acid and benzoyl peroxide to in-office treatments like HydraFacial and chemical peels, we’re here to help you achieve clear, glowing skin.
  • Contact us today to schedule a free skin consultation and let our expert team guide you to your best skin yet!
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