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The Ordinary: Glycolic Acid, Retinol & Salicylic Acid

A complete guide to exfoliation, renewal, and acne care

The Ordinary is known for no-frills formulations that focus on high-performance active ingredients. Among its most popular offerings are Glycolic Acid, Retinol, and Salicylic Acid—three powerhouse actives that target texture, acne, pigmentation, and signs of aging. When used correctly, they can dramatically improve skin health.

1. The Ordinary Glycolic Acid 7% Toning Solution

What It Is

Glycolic Acid is an alpha hydroxy acid (AHA) derived from sugar cane. The Ordinary’s 7% Toning Solution is a chemical exfoliant designed to remove dead skin cells from the surface of the skin.

Key Benefits

  • Improves skin texture and smoothness

  • Brightens dull, uneven skin tone

  • Helps fade hyperpigmentation and dark spots

  • Enhances absorption of other skincare products

  • Can help reduce the appearance of fine lines over time

How It Works

Glycolic acid has a small molecular size, allowing it to penetrate the skin easily. It loosens the bonds between dead skin cells, encouraging natural exfoliation and cell turnover.

How to Use

  • Use at night, after cleansing

  • Apply with a cotton pad or hands

  • Do not rinse

  • Follow with a hydrating serum and moisturizer

  • Use 2–3 times per week, not daily for beginners

Who It’s Best For

  • Normal, dry, and combination skin

  • Dull or uneven skin tone

  • Rough texture

Cautions

  • Can cause tingling or mild irritation

  • Avoid using on very sensitive or compromised skin

  • Daily sunscreen is mandatory—glycolic acid increases sun sensitivity

2. The Ordinary Retinol (in Squalane)

What It Is

Retinol is a vitamin A derivative and one of the most researched anti-aging ingredients in skincare. The Ordinary offers retinol in different strengths (0.2%, 0.5%, and 1%) suspended in squalane to reduce irritation.

Key Benefits

  • Reduces fine lines and wrinkles

  • Improves skin texture and firmness

  • Helps fade acne scars and pigmentation

  • Boosts collagen production

  • Supports long-term skin renewal

How It Works

Retinol accelerates cell turnover and stimulates collagen production deep within the skin. Over time, this leads to smoother, clearer, and more youthful-looking skin.

How to Use

  • Use only at night

  • Apply a pea-sized amount after cleansing

  • Follow with a moisturizer

  • Start with 2–3 times per week, then increase gradually

  • Beginners should start with the lowest strength

Who It’s Best For

  • Aging or mature skin

  • Acne-prone skin

  • Uneven tone and texture

Cautions

  • Can cause dryness, peeling, and irritation (especially at first)

  • Do not use during pregnancy

  • Never combine with strong acids in the same routine

  • Sunscreen is essential during the day

3. The Ordinary Salicylic Acid (2%)

What It Is

Salicylic Acid is a beta hydroxy acid (BHA) that is oil-soluble, making it especially effective for acne-prone and oily skin.

Key Benefits

  • Unclogs pores from the inside

  • Treats and prevents acne and blackheads

  • Reduces inflammation and redness

  • Helps control excess oil

  • Improves skin clarity

How It Works

Unlike AHAs, salicylic acid penetrates deep into pores, dissolving oil and debris that cause breakouts. It also has anti-inflammatory properties that calm active acne.

How to Use

  • Use once daily or every other day

  • Apply after cleansing, before moisturizer

  • Can be used as a spot treatment or all over

  • Follow with a lightweight, non-comedogenic moisturizer

Who It’s Best For

  • Oily and acne-prone skin

  • Blackheads and whiteheads

  • Congested pores

Cautions

  • Overuse can cause dryness or peeling

  • Avoid combining with other exfoliating acids in the same routine

  • Not ideal for very dry or sensitive skin

Can You Use Them Together?

✔ Yes—but not in the same routine

Safe pairing strategy:

  • Morning: Salicylic Acid (if needed) + sunscreen

  • Night 1: Glycolic Acid

  • Night 2: Retinol

  • Night 3: Rest/hydration

This rotation prevents irritation and protects your skin barrier.

Final Thoughts

Glycolic Acid, Retinol, and Salicylic Acid are highly effective when used correctly. The key to success with The Ordinary products is:

  • Start slow

  • Don’t mix too many actives at once

  • Always moisturize

  • Never skip sunscreen

With patience and consistency, these ingredients can transform your skin’s texture, clarity, and overall health.