Welcome to another issue of Just About the Glow.

The newsletter for women simplifying skincare, buying more selectively, and finding their way back to healthy, steady glow.

If this helps, forward it to someone overwhelmed by skincare noise.

In today's issue:

1. Why over-exfoliating strips more than it smooths

2. The Korean logic behind BHA and AHA, used the right way

3. A simpler way to get texture and glow without the irritation

Here's one for you.

True or false: a higher percentage of AHA or BHA always means faster, better results.

Keep reading. The answer, and why it matters for your skin barrier, is waiting for you at the end of this issue.

Most people assume smoother skin comes from scrubbing harder, exfoliating more often, or reaching for something stronger the moment results slow down.

That's not how Korean skincare treats exfoliation.

The goal isn't more friction. It's a more precise dose, used consistently, so your skin barrier stays intact while texture and tone actually improve.

It's a small shift in thinking, but it changes almost everything about how you'd choose a product and how often you'd reach for it.

If you've ever finished a strong exfoliating treatment and felt your skin go tight, red, or strangely sensitive to your usual moisturizer, you're not imagining it.

A lot of exfoliation advice treats stronger as better: higher percentages, more frequent use, layering multiple acids in the same routine. It's an easy trap, especially when a product promises visible results overnight.

The problem is what that approach actually does to your skin barrier. Over-exfoliated skin doesn't look like glass skin. It looks reactive: flushed, tight, and prone to breakouts it didn't have before.

This is one of the most common mistakes I see in routines that are otherwise thoughtful. The exfoliating step is the one place where more almost always works against you.

It's also one of the easiest routines to overcorrect. A cleansing brush, a weekly peel, and a daily acid toner can look like three separate steps, but your skin experiences it as one long stretch of exfoliation with no recovery time built in.

Korean skincare treats exfoliation as maintenance, not correction. The acid isn't there to fix a problem overnight. It's there to gently keep your skin's surface doing its job.

BHA, salicylic acid, is oil-soluble, so it moves into pores and clears out what's sitting inside them: excess oil, buildup, and the debris that leads to congestion.

AHA, usually glycolic or lactic acid, works on the surface, loosening the bond between dull, dead skin cells so texture looks smoother and tone looks more even.

The Korean approach doesn't choose one acid at a high strength and push it hard. It uses both, in low, well-formulated percentages, layered into a routine built to support the barrier instead of testing it.

This is where most people get it wrong. They treat BHA and AHA as interchangeable, when they're actually solving two different problems at two different depths of the skin.

It's also why K-beauty routines often apply exfoliating acid through a toner or a soaked cotton pad, swept gently over the skin, rather than a scrub worked in with pressure. The result comes from the ingredient doing its job, not from friction doing it for them.

If your current exfoliation routine feels like guesswork, here's where I'd simplify.

Pick one exfoliating step, not three. A BHA toner or a low-percentage AHA serum is enough on its own. You don't need both in the same routine unless your skin has already shown you it can handle it.

Look for BHA formulas around 0.5 to 2 percent and AHA formulas that are pH-balanced, usually in the 5 to 10 percent range. Higher numbers aren't a shortcut. They're usually a sign the formula is built for occasional use, not daily reliance.

Use it two to three times a week, not every night. Give your skin the days in between to recover and hold onto moisture.

Pair it with a barrier-supporting moisturizer, and skip layering a retinol on the same night. Your skin can handle one active doing its job well. It struggles with three doing it all at once.

This is one of the few adjustments that actually earns its place in a routine that's already working. Everything else is optional.

And if you're introducing a new acid for the first time, patch test it on your inner arm for a couple of days before it goes anywhere near your face. It's a small step that saves you from finding out the hard way that a formula doesn't agree with you.

Glass skin was never about doing more. It's what skin looks like when the barrier is intact and nothing is working against it.

The glow you're after doesn't come from a stronger acid. It comes from the right amount, used consistently, on skin that's allowed to recover.

If your exfoliation routine has started to feel like more effort for less payoff, that's usually the sign to do less, not more.

What's worth it, and what isn't, comes down to the same question every time: is this step working with your skin, or against it.

The answer: false.

A higher percentage of AHA or BHA doesn't mean faster or better results. Past a certain point, it just means more disruption to your skin barrier, which shows up as redness, sensitivity, and a routine that stops working the way it used to.

The Korean approach favors the lowest effective percentage, used consistently, over a strong percentage used occasionally out of frustration.