Glycolic vs Salicylic Acid: Which is Better for Your Skin?
With so many skincare acids in the market, figuring out which one is right for your skin's needs can get confusing. Two of the most popular options are glycolic acid and salicylic acid. Both help exfoliate the skin, but they work differently and suit different skin types. Keep reading to learn all about glycolic acid versus salicylic acid, from what they are to which one may work better for your unique skin.
What is Glycolic Acid?
Glycolic acid is an alpha hydroxy acid (AHA) derived from sugar cane. It is one of the smallest acids in size, which allows it to penetrate the skin easily and effectively. AHAs, like glycolic acid, break the bonds holding dead skin cells together, allowing the skin to shed these cells more rapidly than it would on its own. The result is smoother, brighter, more even-toned skin.
Glycolic acid boosts collagen production, helping maintain skin's youthful appearance and minimising fine lines and wrinkles. Regular use of glycolic acid re-texturises the skin and gives it a radiant glow.
What is Salicylic Acid?
Like glycolic acid, salicylic acid is another beta hydroxy acid (BHA) commonly found in skincare products. Salicylic acid helps dissolve keratin, the protein that makes up the top layer of skin. This exfoliating ability helps keep pores clear of dead skin cells, oil, and bacteria that can lead to acne.
Additionally, salicylic acid is oil-soluble, while glycolic acid is water-soluble. Its oil solubility allows salicylic acid to penetrate deeper into pores and sebaceous glands, making it an effective breakout treatment. The ability of salicylic acid to slough off dead cells inside pores also helps calm redness and improve skin texture.
Glycolic Acid vs Salicylic Acid: Key Differences
This section compares glycolic vs salicylic acid. The main difference between glycolic acid and salicylic acid includes:
Avenue |
Glycolic acid |
Salicylic acid |
Chemical Structure |
Glycolic acid has the smallest molecular structure of all the alpha hydroxy acids, allowing it to penetrate the skin quickly. |
Salicylic acid is derived from willow tree bark and has a larger molecular structure. |
Exfoliation Process |
Glycolic acid works mainly by loosening the bonds between dead skin cells to enhance cell turnover. |
Salicylic acid directly breaks down keratin protein and can reach deeper into pores. |
Skin Benefits |
Glycolic acid retexturises the surface of the skin, smooths fine lines and wrinkles, evens out skin tone, and gives skin a bright glow. |
Salicylic acid clears acne, reduces oil production, relieves redness, and improves skin texture. |
Suitability for Skin Types |
Glycolic acid works well for normal, dry, and mature skin types. However, sensitive or acne-prone skin can experience irritation, redness, and peeling. |
Salicylic acid is suitable for oily, acne-prone skin types. It's gentle enough for sensitive skin when used properly. |
Salicylic Acid or Glycolic Acid: Which Is Better for You?
So, regarding glycolic acid versus salicylic acid, how do you choose which one is right for your skin? Here are some key considerations:
Salicylic acid is likely the better choice if you have oily, acne-prone skin. Its ability to penetrate pores effectively makes it an effective acne treatment. Start with a 2% salicylic acid product a few times per week and slowly increase frequency based on skin tolerance. A notable option is the Pink Foundry's Acne & Oil Control Intense Serum with 2% Salicylic Acid.
Glycolic acid is superior for wrinkle-related benefits and skin retexturing. Those with dry, dull skin will see excellent results with regular use of glycolic acid toners or chemical peels. One can begin with lower percentages, like 5%, a few times a week and work up to 10-15% glycolic acid.
People with sensitive skin need to be careful with both acids. Glycolic acid can cause redness, stinging, and irritation in those with sensitive skin. Salicylic acid is gentler but can still lead to dryness or peeling. Do a patch test before the full application.
If you have acne-related concerns or wrinkles, you can use both acids, but not in the same skincare routine. Use salicylic acid in the morning to prevent breakouts, followed by glycolic acid at night for exfoliation and collagen production.
Or alternate days using one acid versus the other to reap the combined rewards while avoiding over-exfoliating the skin. Introduce acids slowly into your regimen and discontinue use if any discomfort occurs.
Also read: Unveiling the Power of Glycolic Acid Serum: A Comprehensive Guide
How to Use Glycolic and Salicylic Acids Together Safely
If you wish to use both glycolic and salicylic acid to address multiple skincare concerns, here are some tips for safe, effective use:
- Use lower percentages, such as a 2% salicylic acid and 5% glycolic acid combo.
- Alternate days for each acid rather than layering them together to prevent over-exfoliating.
- Pay attention to how your skin feels. Irritation, dryness, tightness, and redness are signs to cut back or take a break.
- Always wear SPF in the morning when using acids, as they make skin more sun-sensitive.
- Give skin some nights off from acids so the skin's moisture barrier doesn't get compromised.
- Apply hydrating, gentle moisturisers and serums on nights you use these acids. Acids can have drying effects on the skin.
- As the skin builds tolerance, the acid percentage or frequency can increase slowly. Don't rush the process.
- Seek professional guidance if you are unsure how to incorporate acids into your regimen properly.
Also read: Amazing Benefits of Salicylic Acid for your Skin
Conclusion
Both glycolic and salicylic acids offer tremendous skin-enhancing benefits, from reducing acne to smoothing wrinkles and everything in between. Glycolic acid reigns supreme for wrinkles, skin radiance, and re-texturising effects on the skin's surface. Salicylic acid is unmatched for deep-cleaning clogged pores and clearing up breakouts.
The key is choosing the acid that best aligns with your skin goals, tolerances, and type. Understanding proper usage guidelines, starting slow, and alternating between the two acids allows one to unlock the skin-improving potential of both over time. With a strategic regimen tailored to your unique skin, you can achieve clear, smooth, youthful skin with regular use of glycolic and salicylic acids.
FAQs
Is salicylic acid or glycolic acid better for hyperpigmentation?
Regarding salicylic acid vs glycolic acid hyperpigmentation, Glycolic acid is more effective for treating hyperpigmentation. Its ability to accelerate cell turnover and increase collagen production helps fade dark spots and discoloration faster than salicylic acid. Start with a low-percentage glycolic acid serum a few times a week and gradually build up tolerance. Apply diligent sun protection when using glycolic acid.
Are glycolic acid and salicylic acid the same?
Glycolic and salicylic acids are alpha hydroxy acids used to exfoliate the skin chemically. However, glycolic acid is an AHA, while salicylic acid is a BHA. They have different chemical structures, mechanisms of action, and skin benefits. Glycolic acid exfoliates the skin's surface, while salicylic acid can penetrate deeper into pores, making them suitable for different skin types and concerns.
Can I use glycolic acid at night?
Yes, nighttime is the best time to use glycolic acid. Glycolic acid helps boost collagen production, which primarily happens at night during the skin's repair cycle. Using glycolic acid at night allows it to work while you sleep without having to worry about sun exposure. Start by applying glycolic acid 2-3 nights a week and gradually increase to every other night based on your skin's tolerance.
Can I use salicylic acid at night?
Salicylic acid can be used in the morning or night. Using it at night allows it to work while you sleep to deeply cleanse pores. When using it in the morning, it regulates oil to prevent breakouts during the day. If one uses salicylic acid twice daily, apply it once in the morning and at night. If one uses it once daily, experiment to see if the morning or night application works better for your skin.