What is Salicylic Acid: Neutrogena skincare ingredient glossary

Salicylic acid is a beta hydroxy acid (BHA), a type of chemical exfoliant that buffs away dead surface skin. Unlike their cousins, the water-soluble alpha hydroxy acids (AHAs), BHAs are oil-soluble. And this little detail makes all the difference.

Salicylic acid is the most common BHA in skincare products. Mild and effective, it's the deep-cleaning expert your skin craves when it's feeling clogged. Since your skin's natural barrier is largely made up of oily compounds called lipids, salicylic acid's oil-soluble superpower allows this ingredient to better penetrate into your pores. This helps melt away the gunk (sebum, dead skin cells and other grime) that can lead to acne.

Sometimes labeled as "willow bark extract" in skincare products, salicylic acid has deep roots — quite literally — in ancient practices. Salicin, a natural compound found in willow bark, is the precursor to salicylic acid. Ancient civilizations have used willow bark for thousands of years, highlighting an early understanding of salicylic acid's remarkable benefits.

The journey of salicylic acid took a significant leap in the 19th century when chemists managed to isolate salicin from willow bark and convert it into salicylic acid in a laboratory setting. This breakthrough marked the transition of salicylic acid into a widely accessible, versatile compound.

Today, most of the salicylic acid found in medicine and skincare products is made in labs. Starting with ingredients like willow bark and wintergreen leaves, scientists use complex chemical reactions, including the famed Kolbe-Schmitt reaction, to sustainably produce pure, consistent and effective salicylic acid.

So, what is salicylic acid used for, exactly? It's best known for its ability to fight acne. Salicylic acid dives deep into your pores to clear out the gunk that causes those unwelcome breakouts, making it an effective ingredient to help treat blackheads, whiteheads and other types of acne. As an exfoliant, it gently breaks down the bonds between surface skin, sweeping away the old, damaged surface skin to make way for new skin.

But salicylic acid doesn't just fight current breakouts — it also helps prevent new ones. If you have oily skin, salicylic acid is your ally. It helps control shine and clogged pores by reducing oil without damaging the skin barrier. And by dissolving gunk and reducing oil in your pores, it helps minimize their appearance. All of these properties lay the groundwork for smooth, clear, healthy-looking skin day after day.

Incorporating salicylic acid into your skincare routine can transform how you tackle acne, oily skin and texture issues. Here's how to effectively add this ingredient into your routine for the best results.

Choose the Right Products

Salicylic acid comes in various forms, from cleansers and serums to spot treatments. Pick the ones that match your skin's needs, such as a cleanser for overall oil control or a spot treatment for stubborn blemishes.

Looking for a recommendation? Neutrogena Stubborn Texture® Acne Cleanser for Textured Skin helps clear breakouts and visibly smooth uneven skin texture in just one week with a dermatologist-grade acid complex including 1% salicylic acid. Another great option is Neutrogena® Oil-Free Acne Wash Pink Grapefruit Foaming Scrub, which smooths away roughness and treats acne with 2% salicylic acid without over drying skin.

Take It Slow

Most people can use salicylic acid up to three times a day, but start slow. Begin using a salicylic acid product between 0.5% and 2% every other day. Then, increase the usage frequency and concentration as your skin becomes accustomed to the ingredient. Neutrogena® Stubborn Blackheads Daily Acne Facial Serum is the perfect place to start. It contains 0.5% salicylic acid to visibly clear clogged pores. To treat and help prevent breakouts, work your way up to a powerful acne spot treatment like Neutrogena Rapid Clear® Salicylic Acid Acne Treatment with Witch Hazel.

Moisturize

Salicylic acid can be drying, so follow up with your favorite moisturizer day and night. Try Neutrogena® Oil-Free Pink Grapefruit Acne Face Moisturizer for a non-greasy, soothing hydrator that won't clog pores.

Shield From the Sun

Any resurfacing product, including salicylic acid, can make your skin more sensitive to the sun. So, slather on a broad-spectrum sunscreen with SPF 30 or higher in the morning like Neutrogena® Clear Face Breakout Free Liquid Lotion Sunscreen Broad Spectrum SPF 50. Reapply at least every two hours or after swimming or sweating.

Listen to Your Skin

Monitor your skin's response. If it's feeling dry, tight or irritated, reduce the frequency. If this doesn't resolve the issue, switch to a lower concentration of salicylic acid.

Ask an Expert

Do you have unique skin concerns or feel unsure about how to use salicylic acid in your routine? Consult a dermatologist for customized advice to ensure your skincare journey is effective and stress-free.