Lactic Acid vs Salicylic Acid: Which Is Better for Your Skin

If you’re interested in skincare, you’ve probably come across lactic acid and salicylic acid.

These two ingredients have become increasingly popular in the skincare world, and for good reason. But which one is better?

In this article, we’ll dive deep into the differences between lactic acid and salicylic acid to help you make an informed decision about which acid is best for your skin.

Lactic Acid

Lactic acid is an alpha hydroxy acid (AHA) that is derived from milk. It is a water-soluble acid that is effective at exfoliating the skin by breaking down the bonds between dead skin cells, allowing them to be easily removed from the surface of the skin.

Lactic acid is a popular skincare ingredient due to its ability to improve the texture and tone of the skin, and its mild nature makes it suitable for most skin types.

How Lactic Acid Works

Lactic acid works by gently exfoliating the top layer of the skin, allowing new, healthy skin cells to come to the surface.

It also helps to increase the production of collagen and elastin, which are essential for maintaining the skin’s firmness and elasticity.

Lactic acid also has humectant properties, meaning it can help to hydrate and plump the skin, reducing the appearance of fine lines and wrinkles.

Benefits of Lactic Acid

a. Improves Skin Texture and Tone

Lactic acid is effective at smoothing the skin’s texture and improving its tone by exfoliating away dead skin cells and promoting the growth of new, healthy cells. This can help to reduce the appearance of fine lines, wrinkles, and hyperpigmentation.

b. Hydrates the Skin

Lactic acid is a humectant, meaning it can help to draw moisture into the skin and keep it hydrated. This can help to improve the overall health and appearance of the skin.

c. Mild and Gentle

Lactic acid is a mild and gentle exfoliant that is suitable for most skin types, including sensitive skin. It is less likely to cause irritation or redness compared to other exfoliating acids, making it a popular choice for those with more delicate skin.

According to Dr. Mona Gohara, a board-certified dermatologist, “Lactic acid is a great exfoliant for those with sensitive skin or those who are new to AHAs. It is a gentle and effective way to improve the texture and tone of the skin without causing irritation.”

Salicylic Acid

Salicylic acid is a beta hydroxy acid (BHA) that is derived from willow bark. It is an oil-soluble acid that is effective at penetrating deep into the pores to exfoliate and unclog them.

Salicylic acid is a popular skincare ingredient due to its ability to treat acne-prone skin and improve the overall texture and appearance of the skin.

How Salicylic Acid Works

Salicylic acid works by penetrating deep into the pores and dissolving the debris that can cause them to become clogged.

It is also effective at exfoliating the surface of the skin, which can help to reduce the appearance of fine lines, wrinkles, and hyperpigmentation.

Salicylic acid also has anti-inflammatory properties, making it an effective treatment for acne-prone skin.

Benefits of Salicylic Acid

a. Treats Acne

Salicylic acid is a popular treatment for acne-prone skin due to its ability to unclog pores and reduce inflammation. It can help to prevent the formation of new acne lesions and improve the appearance of existing ones.

b. Exfoliates and Improves Skin Texture

Salicylic acid is effective at exfoliating the surface of the skin, which can help to improve its texture and tone. This can help to reduce the appearance of fine lines, wrinkles, and hyperpigmentation.

c. Prevents Future Breakouts

Salicylic acid is effective at preventing future breakouts by keeping the pores clean and free of debris. Regular use of salicylic acid can help to maintain clear, healthy-looking skin.

According to Dr. Ranella Hirsch, a board-certified dermatologist, “Salicylic acid is a great ingredient for those with acne-prone skin. It is effective at exfoliating and unclogging the pores, which can help to prevent breakouts and improve the texture and appearance of the skin.”

Lactic Acid vs Salicylic Acid

Both lactic acid and salicylic acid are popular skincare ingredients that can provide numerous benefits for the skin.

While they share some similarities, some key differences between these two acids are important to consider when choosing the best skincare products for your needs.

Key Differences Between Lactic Acid and Salicylic Acid

a. Skin Type

Lactic acid is a milder acid that is well-suited for those with sensitive or dry skin. It is effective at exfoliating the surface of the skin, improving skin texture, and promoting collagen production. Salicylic acid, on the other hand, is better suited for those with oily or acne-prone skin due to its ability to penetrate deep into the pores and exfoliate them.

b. pH Level

Lactic acid has a higher pH level than salicylic acid, which makes it less irritating to the skin. Salicylic acid, on the other hand, has a lower pH level, which can make it more irritating to sensitive skin types.

c. Mode of Action

Lactic acid works by exfoliating the surface of the skin and promoting cell turnover, which can help to improve skin texture and reduce the appearance of fine lines and wrinkles.

Salicylic acid works by penetrating deep into the pores and dissolving the debris that can cause them to become clogged. This makes it an effective treatment for acne-prone skin.

According to Dr. Michele Green, a board-certified dermatologist, “Lactic acid and salicylic acid are both effective skincare ingredients, but they have different benefits depending on your skin type and concerns. Lactic acid is a great option for those with dry or sensitive skin who want to improve their skin texture and promote collagen production. Salicylic acid, on the other hand, is a better choice for those with oily or acne-prone skin who want to unclog their pores and prevent breakouts.”

How to Choose Between Lactic Acid and Salicylic Acid

When choosing between lactic acid and salicylic acid, it’s important to consider your skin type and concerns.

If you have dry or sensitive skin, lactic acid may be a better choice for you. If you have oily or acne-prone skin, salicylic acid may be a better option.

It’s also important to choose products that are formulated with safe and effective concentrations of these acids to avoid over-exfoliation or irritation.

Using Lactic Acid and Salicylic Acid Together

While lactic acid and salicylic acid are effective on their own, they can also be used together in a skincare routine to provide even greater benefits for the skin.

Lactic acid can be used in the morning to exfoliate and brighten the skin, while salicylic acid can be used at night to unclog pores and prevent breakouts.

Conclusion

Overall, incorporating lactic acid and salicylic acid into your skincare routine can help promote skin cell turnover, improve skin texture, and prevent acne breakouts. With proper use and care, lactic acid and salicylic acid can help you achieve your best skin yet.