Korean Retinol for Beginners: How to Start Without the Irritation

A coworker bought her first retinol in the spring, used it three nights in a row alongside an exfoliating toner, and spent the next week looking windburned in every video call. She gave up on it completely. That's the thing about Korean retinol for beginners: the product is rarely the problem, the rushing is.

Below is the routine I helped her rebuild. One retinol, and a handful of gentle products around it whose whole job is to keep her skin comfortable while it adjusts.

Before the first night

Retinol is a vitamin A derivative, and the first few weeks are an adjusting period. Go slow. Two or three nights a week to start, a small amount, and only add nights once your skin stays calm. On retinol nights, keep everything else plain, so no exfoliating acids. If you're not sure which exfoliant you'd use on your off nights, our AHA vs BHA vs PHA guide sorts that out. And sunscreen the next morning, every time.

If you have a skin condition or any doubts, ask a dermatologist before you start. I'm just someone with a bathroom shelf.

Okay, the actual retinol

K-Cactus Retinol Chimtok™ Serum (30ml) by ONEOHOH at Baerry — K-Cactus Retinol Chimtok™ Serum (30ml)

The one we picked is the ONEOHOH K-Cactus Retinol Chimtok™ Serum. It pairs retinol with prickly pear in a formula designed to keep irritation low, and ONEOHOH says it's suitable even for sensitive skin, which is what sold her.

It also contains spicules for targeted micro-stimulation, so it's doing a bit more than a plain retinol serum. That's another reason to start with only a few nights a week. Apply it, then tap it in with your fingertips. Don't rub. The brand aims it at people starting slow-aging care in their twenties, so it's very much a first-timer product.

A watery layer underneath

Madagascar Centella Hyalu-Cica First Ampoule (100ml) by Skin1004 at Baerry — Madagascar Centella Hyalu-Cica First Ampoule (100ml)

Right after cleansing, before the retinol, she uses the Skin1004 Madagascar Centella Hyalu-Cica First Ampoule. Skin1004 calls it a step zero ampoule, meaning it's meant to be the very first thing on clean skin.

It's watery, absorbs fast, and has five layers of hyaluronic acid. A hydrated base under retinol just feels more comfortable, and on nights her skin looks a little tight she does two pats instead of one.

If your skin breaks out easily

345 Relief Cream (50ml) by Dr. Althea at Baerry — 345 Relief Cream (50ml)

She's prone to breakouts, so a heavy cream after retinol was out. The Dr. Althea 345 Relief Cream is a lightweight vegan gel cream made for acne-prone skin, and it's non-comedogenic.

Niacinamide helps with dullness and ceramide NP keeps moisture in. It's her moisturizer on retinol nights, a thin layer, ten minutes or so after the serum has settled.

The one from her boyfriend's side of the sink

Perfect Collard Green Calming Cream (80ml) by MINIC at Baerry — Perfect Collard Green Calming Cream (80ml)

Funny story. On the nights her face felt a bit warm and tight, she started borrowing her boyfriend's MINIC Perfect Collard Green Calming Cream. MINIC is a men's grooming brand, but skin is skin.

It has five types of ceramides, D-panthenol and SECOL-G for soothing, and it feels fresh rather than greasy. She now keeps her own jar for off nights, when her skin needs a break more than anything else. The 80ml size goes a long way.

Morning after, every morning after

Green Tea Hyaluronic Sun Serum SPF50+ PA++++ (50ml) by Innisfree at Baerry — Green Tea Hyaluronic Sun Serum SPF50+ PA++++ (50ml)

Starting retinol and skipping sunscreen is how people end up blaming the retinol. She walks her dog at 7am, so SPF goes on before the leash does.

The Innisfree Green Tea Hyaluronic Sun Serum SPF50+ PA++++ feels like a hydrating serum, with green tea water and encapsulated hyaluronic acid. It's dermatologist tested, low irritation and vegan certified. Light enough that she actually wears it on cloudy days too.

Save this one for nights off

Neo Shot Skin Boost Serum (30ml) by GIPPEUN at Baerry — Neo Shot Skin Boost Serum (30ml)

The GIPPEUN Neo Shot Skin Boost Serum is packed with tiny Neo Shots carrying PDRN and NAD, aimed at elasticity, texture and radiance. It's nice. It's also not something to stack with retinol while you're still figuring out how your skin reacts.

So it lives on the in-between nights: cleanse, tone, two or three drops patted over the face, moisturizer. That way her skin still gets a treatment step without doubling up on the same night.

About six weeks in, she's up to most nights and hasn't had a repeat of the windburned week. If you want to browse more slow-aging options once you're comfortable, the anti-aging collection is a good place to look. Just don't buy all of it at once.

FAQ

How often should a beginner use retinol?

Start 2-3 nights a week with a low concentration like 0.1%, and only increase frequency once your skin shows no flaking or redness after a few weeks.

Can I use retinol and vitamin C together?

It's best to use them at different times — vitamin C in the morning under SPF, and retinol at night — to avoid destabilizing either ingredient or over-irritating skin.

Is bakuchiol a good substitute for retinol?

Yes, especially for sensitive or first-time users. Bakuchiol offers similar collagen-supporting benefits with much lower irritation risk, though results tend to build more slowly.

Do I need to moisturize more when using retinol?

Yes. Retinol can be drying, so pairing it with a hydrating buffer toner and a richer night cream helps offset dryness and supports the skin barrier.

Can I use retinol if I have sensitive skin?

You can, but go slowly — start with the lowest percentage available, buffer with a soothing toner, and consider alternating with bakuchiol until your skin builds tolerance.

Written by Hyerin Park

Hyerin has always loved shopping—fashion, beauty, and pretty much anything worth adding to cart. Since starting Baerry, that habit has turned into testing dozens of new beauty products that land on the team’s desks in Seoul, plus plenty she buys herself. An ISTJ with a very high bar for what makes the cut, she treats her own face as the testing ground before recommending anything.