The Ordinary Glycolic Acid for Dandruff? Here's Why Salicylic Acid Actually Works Better

Antony A

Sep 8

3 min read

That Reddit Tip About Using Glycolic Acid for Dandruff, Let's Talk About It

Scrolling through skincare Reddit or discussions among Indian beauty enthusiasts, you might stumble across a suggestion. Use The Ordinary's Glycolic Acid 7% Toning Solution on your scalp to combat dandruff. At first glance, the idea seems logical. Glycolic acid exfoliates, and dandruff involves flaking and dead skin build-up, possibly mixed with a fungal issue. So why not give scalp exfoliation a try?

But hold on, not so fast. Glycolic acid is not the same as salicylic acid, particularly for the scalp. When it comes to dandruff, one is clearly better suited for the task at hand. Spoiler alert, it's not glycolic acid.

What's Actually Causing Your Dandruff?

Before we discuss acids, it's crucial to know what we're dealing with. Dandruff usually arises from a mix of issues:

Excess oil production on your scalp
The yeast Malassezia, thriving on that oil
A build-up of dead skin cells not shedding properly
Dry, flaky scalp, slightly different from standard dandruff but often grouped together

In India, especially during summer and monsoon, your scalp may get oilier quickly due to the humidity. This creates an ideal setting for Malassezia. What you need is something to cut through oil, gently exfoliate, and control fungal growth.

What Glycolic Acid Does (And Why It's Not Ideal Here)

Glycolic acid, an alpha hydroxy acid (AHA), is water-soluble. It works by loosening bonds between skin cells for exfoliation. Great for your face, improving brightness and texture, but your scalp's a different territory.

Your scalp's environment is unique, with more oil and hair follicles. Water-soluble glycolic acid struggles to penetrate oily, sebum-filled follicles. It only works on the surface, while problems might lurk deeper.

Another point often skipped in Reddit suggestions is UV sensitivity from glycolic acid. On your face, you'd apply sunscreen. Your scalp? That's less likely unless you have thin hair or a bald patch. UV exposure is real, especially outdoors, putting your scalp at risk.

Why Salicylic Acid Is the Better Choice for Dandruff

Enter salicylic acid, a beta hydroxy acid (BHA). The vital difference? It's oil-soluble.

This detail makes all the difference for oily, clogged follicles. Salicylic acid dissolves in oil, meaning it penetrates follicles, effectively clearing out sebum build-up rather than just the surface.

Salicylic acid's scalp benefits:

Reduces flaking by exfoliating
Unclogs oily hair follicles
Offers mild antimicrobial effects t keep Malassezia under control
Calms inflammation on irritated scalps
Produces less photosensitivity compared to glycolic acid

This is why it appears in medicated anti-dandruff shampoos, not because it's trendy, but because it actually works.

How to Actually Use Salicylic Acid for Dandruff

Option 1: Anti-Dandruff Shampoos with Salicylic Acid

Your easiest choice. Find shampoos listing salicylic acid among active ingredients. Indian markets offer numerous options, from ₹200 to ₹600. Leave the shampoo on for a bit before rinsing, to let it do its work.

Option 2: The Ordinary Salicylic Acid 2% Masque

The Ordinary also offers a 2% salicylic acid masque, better suited for the scalp than the glycolic toner. Apply it, leave it for 10-15 minutes, then rinse. Designed as a pre-shampoo treatment, it targets problem areas.

Option 3: Salicylic Acid Scalp Serums

Some brands provide special salicylic acid scalp serums. Apply between washes and don't rinse. Start with twice a week, observing your scalp's reaction before considering more frequent use.

A Note on Frequency and Scalp Sensitivity

Like facial skin, the scalp can be over-exfoliated. Overuse of salicylic acid could strip natural oils and irritate, worsening dryness. Begin with once or twice weekly. If severe or persistent dandruff exists, check with a dermatologist. It might be dandruff, seborrheic dermatitis, or something else requiring a distinct treatment.

If dandruff has a fungal side, antifungal agents like ketoconazole, found in shampoos like Nizoral at Indian pharmacies, may be necessary alongside exfoliation. Salicylic acid assists, but isn't an antifungal by itself.

So, Should You Use Glycolic Acid on Your Scalp?

Probably not as your main dandruff fix. It won't necessarily harm you, but it's not the right tool. Its water solubility limits effectiveness on an oily scalp and there's a real, often ignored UV sensitivity risk, especially on your head.

If you love The Ordinary Glycolic Acid 7% Toning Solution for your face, keep it there. For your scalp and tackling dandruff, turn to salicylic acid. It knows how to deal with oil, and your scalp is in the oil game.

Sometimes, the less glamorous chemistry is just the right choice.