Salicylic acid and glycolic acid are two popular skincare ingredients known for their ability to improve various skin concerns. While they work well individually, combining them in your skincare routine can offer even better results. Using salicylic acid and glycolic acid together can be particularly beneficial for those with oily and acne-prone skin. Let’s briefly understand what each acid does:

What is Salicylic Acid?

This acid is a beta hydroxy acid (BHA) that penetrates deep into your pores. It’s great for treating acne and unclogging pores because it effectively dissolves excess oil and dead skin cells that cause breakouts. Salicylic acid also has anti-inflammatory properties, that can help to relieve redness and irritation.

A 2012 study published in Journal of American Academy of Dermatology study with 2% salicylic acid cleanser for mild to moderate acne showed promising results. Patients aged 12 to 30 used the product for 8 weeks, resulting in fewer acne without drying out the skin.

What is Glycolic Acid?

Glycolic acid belongs to the alpha hydroxy acid (AHA) family. It’s derived from sugar cane and is known for its exfoliating properties. Glycolic acid acts on the skin’s surface, gently removing dead skin cells, improving texture, and promoting skin cell turnover. Glycolic acid is also a humectant, which attracts and binds water to skin cells. It can also help with hyperpigmentation and fine lines.

According to a 2013 study published in Dermatologic Surgery, using a 5% glycolic acid cream on a regular basis for at least 3 months can help improve some signs of skin ageing.

Benefits of Using Salicylic Acid and Glycolic Acid Together

Combining salicylic acid and glycolic acid in your skincare routine offers the following benefits:

1. Proper Exfoliation

Salicylic acid and glycolic acid target different layers of your skin. Salicylic acid, being oil-soluble, penetrates deep into the pores, effectively breaking down excess oil and dead skin cells that cause blackheads, whiteheads, and acne.

Glycolic acid, as a water-soluble acid, works on the surface, gently dissolving dead skin cells and improving overall skin texture. When used together, they provide a thorough exfoliation from both within and on the surface, resulting in smoother and more even-toned skin.

2. Unclogs Pores

Enlarged pores are a common complaint among people with oily skin. Salicylic acid’s unique ability to penetrate pores makes it an excellent choice for clearing out impurities and preventing breakouts. It helps dissolve the debris and sebum that can clog pores, thereby reducing acne and promoting a clear complexion. The combination of salicylic and glycolic acids effectively addresses both the causes and visible effects of clogged pores.

3. Treats Hyperpigmentation

Glycolic acid is well-known for its ability to improve skin tone and reduce hyperpigmentation. It promotes the growth of new, more evenly pigmented skin cells by removing the top layer of dead skin cells. Salicylic acid complements this action by promoting a smoother skin surface and reducing the appearance of dark spots and uneven patches.

How to Use Salicylic Acid and Glycolic Acid Together

While commonly associated with oily and acne-prone skin, this duo can be adjusted to suit the needs of dry, sensitive, or combination skin as well. Here’s how you can use them both together according to your skin type:

1. Oily, Acne-Prone Skin

AM Routine:

• Cleansing: Opt a foaming or gel-based cleanser that can help remove excess oil without stripping your skin of essential moisture.
• Toner: Look for a toner or face mist with ingredients like niacinamide, or hyaluronic acid that can help control oil production and provide hydration.
• Salicylic Acid Serum: Look for a salicylic acid serum with a concentration of 1-2%, apply a thin layer to areas prone to oiliness and breakouts. Focus on the forehead, nose, and chin (T-zone), which are typically more oily.
• Moisturizer: Choose a lightweight, gel-based or water-based moisturizer to keep your skin hydrated without adding to the oiliness.
• Sunscreen: Look for a broad-spectrum (SPF 30+) sunscreen labeled “oil-free” or “matte finish” to prevent additional oil buildup throughout the day.

PM Routine:

• Double Cleansing: Begin with an oil-based cleansing balm or micellar water to remove makeup, sunscreen, and excess oil. Follow up with salicylic acid cleanser to deeply cleanse and target your pores to prevent nighttime breakouts.
• Glycolic Acid Serum:  Look for a glycolic acid serum with a concentration of 5-10% to promote skin renewal and improve texture.
• Hydrating Moisturizer: Consider using a moisturizer that contains ingredients like hyaluronic acid or ceramides to provide hydration without clogging pores.

2. Dry Skin

For dry skin, it’s recommended to prioritize glycolic acid over salicylic acid due to its surface exfoliation properties. Start with a gentle glycolic acid cleanser (3%-5% concentration) in the evening to improve texture. After that, apply a hydrating serum and a rich moisturizer.

To treat occasional breakouts, consider using a mild salicylic acid spot treatment (0.5%-1% concentration) once a week. Always follow with a nourishing moisturizer to prevent dryness.

3. Combination Skin

Combination skin requires a balanced approach. In the morning, cleanse with a salicylic acid cleanser (0.5%-1% concentration) on oily areas (usually the T-zone) to control excess oil and prevent breakouts. For the drier areas, use a gentle cleanser. Apply an oil-free, lightweight moisturizer all over.

During the evening routine, use a glycolic acid toner (5%-8% concentration) on the dry areas of your face to improve texture. On alternating nights, apply a salicylic acid serum (1%-2% concentration) on the oilier areas to keep pores clear and prevent acne. Always follow up with the appropriate moisturizer for the needs of each area.

A Beginner’s Guide

Ahead, some essential tips for beginners on how to incorporate salicylic acid and glycolic acid into your skincare regimen.

1. Start Slowly

If you’re new to using acids or have sensitive skin, start by using each acid separately in your routine. Begin with a lower concentration and gradually increase the frequency and strength.

2. Alternate Days

Once your skin has adjusted to both acids separately, you can begin combining them. Begin by applying salicylic acid one evening and glycolic acid the next. This allows your skin to benefit from both acids without complicating it.

3. AM/PM Skincare Routine

Since glycolic acid increases sun sensitivity, it’s best to use it in the evening. Salicylic acid, on the other hand, can be included in your morning routine to get rid of oiliness and prevent breakouts throughout the day.

4. Layering Both

If you decide to use both acids on the same evening, apply salicylic acid first. It penetrates the pores, preparing them for glycolic acid’s exfoliating action. Follow up with glycolic acid to exfoliate the surface and reveal fresh skin.

5. Avoid Over-use

Using acids too frequently can lead to over-exfoliation, causing irritation and sensitivity. Start by using the combination of salicylic and glycolic acids 2-3 times a week and adjust based on how your skin reacts.

6. Prioritize Sunscreen

The combination of these acids can make your skin more sensitive to the sun’s harmful ultraviolet (UV) rays, so it’s important to prioritize sun protection by using a broad-spectrum sunscreen with an SPF of at least 30. Look for a product that’s labeled “non-comedogenic” to ensure it won’t clog your pores.

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