So what is Retinal now? A new fancy serum or something? Well, there is nothing to be confused about. Retinal (also called retinaldehyde) is a form of vitamin A that sits one step closer to retinoic acid than regular retinol. Yes, that’s it.

But the catch is that many people find it works a bit faster while still being more tolerable than stronger prescription options. Korean brands tend to formulate retinal products on the gentler side, which makes them a good starting point if you’re new to retinoids.

Here’s everything you should know about Retinal, plus we have added the 3 best Korean Retinol Serum options (as we always do).

Why Start with Korean Retinal?

• Often formulated with soothing or hydrating ingredients
• Lower, more approachable strengths
• Many products are designed to minimise irritation
• Easy to find in serum or cream textures

How Beginners Should Start

• Use only at night
• Start 2–3 times a week
• Apply a pea-sized amount (or less for eye products)
• Always follow with moisturiser
• Use sunscreen every morning without fail
• Avoid layering with strong acids or other retinoids at the beginning
• Give your skin 4–6 weeks to adjust before increasing frequency

3 Beginner-Friendly Korean Retinal Options

1. Beauty of Joseon Revive Eye Serum (Ginseng + Retinal) – Best Gentle Starting Point

This is one of the most recommended entry products. It combines a mild retinal with ginseng and is formulated for the delicate eye area, though many people also use a small amount on the face.

Why it’s good for beginners: Low-irritation formula, comforting texture, and a very approachable way to introduce retinal.
Best for: First-time retinoid users, fine lines around the eyes, and sensitive skin.
How to use: Night only. Start a few times a week around the eyes (or sparingly on the face). Follow with moisturiser.

2. K-Secret Seoul 1988 Serum (Retinal Liposome + Black Ginseng) – Best Overall Beginner Serum

This serum uses liposome technology to deliver retinal more gradually. It’s frequently praised for being gentle while still feeling effective.

Why it’s good for beginners: Encapsulated/liposome delivery helps reduce the chance of irritation. Comfortable for regular evening use once adjusted.
Best for: Overall face use, texture, and early firmness concerns.
How to use: Apply a small amount at night after cleansing and toning. Buffer with moisturiser if needed. Start slow.

3. Celimax The Vita-A Retinal Shot Tightening Booster – Best Step-Up Option

A more concentrated retinal booster that still stays within a manageable range for many people who have already tolerated milder products.

Why it’s good for beginners who are ready for more: Clear retinal focus with a formula designed for visible firming and texture benefits.
Best for: Those who have already adjusted to a gentle retinal or retinol and want a slightly stronger step.
How to use: Night only. Start with very small amounts and low frequency. Always moisturise after.

BKG Pro Tips –

• Moisturiser is your friend – don’t skip it
• If your skin feels dry or tight, reduce frequency instead of stopping completely
• Results (smoother texture, better tone) usually show after consistent use over several weeks
• If you have very sensitive or reactive skin, consider starting with a retinol cream (like COSRX Retinol 0.1) before moving to retinal

FAQs

Q: What’s the difference between retinol and retinal?
A: Retinal is one conversion step closer to the active form the skin uses, so it can work a bit faster. Many people find well-formulated retinal products still gentle enough for beginners.

Q: Can I use retinal around my eyes?
A: Yes, if the product is designed for it (like the Beauty of Joseon eye serum). Be extra cautious and start slowly.

Q: Should I use retinal every night from the start?
A: No. Begin 2–3 nights a week and increase only if your skin stays comfortable.