How many times a week should I exfoliate?

It depends on your skin type: oily skin can handle two to three times per week, normal or combination skin does well with one to two times, and dry or sensitive skin should start with once a week and adjust from there.

What is the difference between AHA and BHA exfoliants?

AHAs like glycolic and lactic acid work on the skin surface and are best for dullness, sun damage, and fine lines. BHAs like salicylic acid are oil-soluble and penetrate into pores, making them better for acne and blackheads.

What are signs of over-exfoliation?

Signs include persistent redness, stinging when applying normal products, increased sensitivity to sunscreen, skin that looks shiny but feels tight, and breakouts that were not there before. If you notice these, stop all exfoliants and focus on barrier repair.

Is physical or chemical exfoliation better?

Chemical exfoliants (AHAs, BHAs) are generally more even and less likely to cause micro-tears than physical scrubs. If you prefer physical exfoliation, use a gentle formula with smooth round particles, not crushed shells or rough grains.

Can I exfoliate if I use retinol?

Yes, but carefully. Retinol already increases cell turnover, so adding an AHA or BHA on the same night risks irritation. Use them on alternating nights, or exfoliate once a week and use retinol on other nights.

How Often Should You Exfoliate Your Face? A Guide by Skin Type

Most people should exfoliate their face one to three times a week, but the right frequency depends on your skin type, the type of exfoliant you use, and how your skin responds. Over-exfoliating is one of the most common skincare mistakes, and the damage it causes — redness, irritation, increased breakouts — often gets mistaken for a need to exfoliate more. Getting the frequency right keeps your skin smooth without wrecking its protective barrier.

Chemical vs Physical Exfoliation

Chemical exfoliants use acids or enzymes to dissolve the bonds between dead skin cells so they shed on their own. No scrubbing required. These are generally gentler and more consistent than physical methods because you control the strength by choosing the right acid and concentration.

Physical exfoliants use small particles or a textured tool to manually buff away dead skin. Think scrubs, washcloths, or konjac sponges. These can work fine when the particles are smooth and you use light pressure, but they are easy to overdo.

For most people, chemical exfoliation is the safer, more effective choice. It works evenly across the skin without the risk of micro-tears from rough scrub particles.

Recommended Frequency by Skin Type

Oily Skin

Two to three times per week. Oily skin can generally handle more frequent exfoliation because it produces excess sebum that buffers against irritation. BHAs like salicylic acid work especially well here because they are oil-soluble and can clean inside pores.

Dry Skin

Once a week, or twice at most. Dry skin is more prone to irritation, so go slowly. A gentle AHA like lactic acid or mandelic acid works better than glycolic acid, which can be too intense. Always follow with a rich moisturiser.

Combination Skin

One to three times per week, depending on the area. You might use a BHA on your oily T-zone more frequently and skip or go easy on your drier cheeks. Paying attention to how each zone reacts is more useful than applying the same approach everywhere.

Sensitive Skin

Once a week or less. Start with the gentlest option — a low-concentration lactic acid or a PHA (polyhydroxy acid). If your skin tolerates that well for a few weeks, you can slowly increase. If it stings or turns red, scale back. Sensitive skin and aggressive exfoliation do not mix.

Normal Skin

Two times a week is a good baseline. Normal skin is forgiving, but there is no reason to push it. Consistency at a moderate frequency gives you the benefits without the risk. For a broader picture of how exfoliation fits into a full routine, see our guide on how to build a skincare routine.

Signs of Over-Exfoliation

Your skin will tell you when you have gone too far. Watch for these signals:

Tightness and dryness that moisturiser cannot fix
Redness or a flushed look that does not calm down
Increased sensitivity — products that used to feel fine now sting
More breakouts than before, often small and widespread
A shiny, waxy appearance — this is not the "glow" you are after
Flaking or peeling that was not there before you started exfoliating

If you notice two or more of these, you have likely damaged your moisture barrier. Stop exfoliating immediately.

How to Fix a Damaged Barrier

The fix is simple but requires patience:

Stop all actives. No exfoliants, no retinoids, no vitamin C. Strip your routine down to the bare minimum.
Use a gentle cleanser — something non-foaming with no fragrance.
Apply a barrier-repairing moisturiser. Look for ceramides, squalane, or centella asiatica. These ingredients help rebuild the lipid layer that protects your skin.
Keep using sunscreen. A compromised barrier is more vulnerable to sun damage.
Wait. It can take two to four weeks for your barrier to recover. Do not rush back into actives.

Adding niacinamide to your recovery routine can speed things up. It strengthens the barrier, reduces redness, and plays well with almost everything.

Which Acids to Start With

If you are new to chemical exfoliation, here is where to begin:

AHAs (alpha hydroxy acids) work on the skin's surface. Good for dullness, uneven tone, and dry texture. Start with lactic acid (gentler) before trying glycolic acid (stronger).
BHAs (beta hydroxy acids) go deeper into pores. Best for oily, acne-prone skin. Salicylic acid is the main one, and low concentrations (around 2%) are widely available.

Start with a low concentration, use it once a week, and increase only after your skin has adjusted for two to three weeks with no irritation. More is not better with exfoliation.

For a practical starting point that includes exfoliation in context, our simple morning skincare routine shows where each step fits without overcomplicating things.