The Short Version (For People Who Want Results)
What it is: A 0.1% retinal Serum with 3% Matryxyl (peptide complex). 15ml bottle.
Price right now: 24 – That's 16% off)
Good for: Anyone who's been using retinol and wants stronger results. Fine lines. Large pores. Uneven texture. Sagging.
Bad for: Complete beginners (start with retinol first). Sensitive Skin (patch test). People who won't wear sunscreen.
The surprise: One drop is enough for your whole Face. This bottle lasts 3-4 months.
The catch: Your skin might look slightly yellow after applying. It washes off. Don't panic.
The Real Problem: You're Wasting Money on Weak Retinol
Let me explain the hierarchy.
| Ingredient | Strength | Conversion steps | Irritation | Best for |
|---|---|---|---|---|
| Retinyl ester | Weakest | 3 steps | Very low | Beginners, dry skin |
| Retinol | Medium | 2 steps | Low | Most people, starting point |
| Retinal | Strong | 1 step | Medium | Experienced users, faster results |
| Retinoic acid (prescription) | Strongest | 0 steps | High | Severe acne, deep wrinkles |
Most drugstore products use retinol. It works. Slowly. Over 6-12 months.
Retinal works faster. Studies show it can be up to 10x more potent than retinol. But because it's closer to the active form, it can also be more irritating.
The celimax product uses 0.1% retinal. That's the sweet spot. Strong enough to Work. Not so strong you peel like a snake.
Plus they added 3% Matryxyl. That's a peptide complex. Peptides are like text messages to your skin: "build more collagen." Retinal and peptides together? That's a one-two punch.
What I Actually Found (Real Experience, Honest Timeline)
I've used this serum for 6 weeks. Not 3 months. Not a year. I'm being honest.
Here's my real timeline.
Week 1: Used it every other night. Tiny amount. One drop for my whole face. No irritation. No redness. Skin felt slightly tighter in the morning.
Week 2: Switched to every night. Still fine. Noticed my pores looked smaller. Not gone. Smaller.
Week 3: The "retinal uglies" hit. Small purge. A few whiteheads on my chin. Normal. This is the retinization process. Skin is turning over faster. Pushed through.
Week 4: The purge Stopped. Skin looked brighter. The fine line between my eyebrows? Shallower. Not gone. Shallower.
Week 6 (now): Texture is Smoother. Pores on my cheeks are less noticeable. The sagging along my jawline? Slightly firmer. My husband noticed without me saying anything. That's the real test.
The yellow tint? Yes. After I apply it at night, my skin looks slightly yellow. Like I used a yellow highlighter. It washes off in the morning. Don't worry about it.
The Good (What Actually Works)
0.1% retinal is the right concentration.
Korean skincare is smart. They don't jump to prescription strength. They find the highest effective dose before irritation. 0.1% retinal is that dose. Stronger than 0.5% retinol (yes, really). But gentler than 0.025% tretinoin (prescription).
The formula is elegant.
No weird smells. No sticky residue. Absorbs in 10 seconds. Layers well Under Moisturizer. The bottle is airless pump. No air gets in. No oxidation. Retinal is unstable. This keeps it fresh.
Matryxyl is not just marketing.
Matrixyl 3000 is a patented peptide. Studies show it reduces wrinkle depth by 30-50% over 2 months. Combined with retinal? They work on different pathways. Retinal speeds up cell turnover. Peptides signal collagen production. Together, they're Better than either alone.
One drop is enough.
The bottle is 15ml. Small. But you only need one drop for your whole face. Maybe two for face and neck. This bottle lasts 3-4 months with Daily use. At 5-7 per month. Cheap for medical-grade skincare.
No fragrance. No alcohol. No essential oils.
Sensitive skin friendly. The ingredient list is clean. Nothing that burns or stings.
The Bad (Keep It Honest)
Four real downsides.
First, you cannot skip sunscreen.
Retinal makes your skin photosensitive. If you don't wear SPF 50 every single day, you will burn faster and undo all your progress. This is not optional. If you won't wear sunscreen, don't buy this.
Second, the purge is real.
Week 3-4 might be ugly. Small breakouts. Flaking. Redness. This is not the product "not working." This is the product working. Your skin is turning over faster. Push through. It stops.
Third, it's not for beginners.
If you've never used retinol before, start there. Use a 0.3% or 0.5% retinol for 3-6 months. Then switch to retinal. Jumping straight to retinal might burn your face off. Literally. Chemical burn. Not fun.
Fourth, the yellow tint is annoying.
It washes off. But if you apply it right before bed and your partner sees you? They might ask if you're jaundiced. Just warn them.
Also, 15ml is small. The bottle is tiny. Fits in the palm of your hand. First-time buyers are shocked. That's normal for serums. A Little goes a long way.
How It Compares to Other Retinal Products
| Brand | Retinal % | Peptides? | Price per ml | Texture | Verdict |
|---|---|---|---|---|---|
| celimax (this) | 0.1% | Yes (3% Matryxyl) | $1.34 | Light serum | Best value |
| Avene Retrinal | 0.1% | No | $5.00+ | Cream | Good but expensive |
| Medik8 Crystal Retinal | 0.01-0.2% | No | $8.00+ | Oil-serum | Gold standard, pricey |
| Naturium | 0.05% | No | $1.80 | Cream | Good beginner option |
| Beauty of Joseon | 0.02% | No | $1.50 | Eye cream only | Too weak for full face |
My take: The celimax is the best value retinal on Amazon right now. Medik8 is better but 6x the price. Avene is comparable but 4x the price. The celimax has peptides and retinal at a drugstore price point. That's unusual.
The only catch? It's a Korean brand. Less known in the US. But the reviews (13,000+ stars, 4.5 average) speak for themselves.
Answers to Questions I Had Before Buying
What's the difference between retinol and retinal?
Retinol needs two conversions in your skin to work. Retinal needs one. So retinal works faster and stronger. Think of retinol as a 2-step ladder. Retinal is a 1-step ladder. Both get you there. One is faster.
Can I use this with Vitamin C?
Yes. But not at the same time. Vitamin C in the morning. Retinal at night. Never together. They cancel each other out.
What about niacinamide?
Fine. Niacinamide calms irritation. Use it before retinal. Wait 5 minutes. Then apply retinal.
How do I start if I'm new to retinoids?
Don't start here. Buy a 0.3% retinol from The Ordinary or CeraVe. Use it for 3-6 months. Then graduate to this. Your skin will thank you.
Why does it say "night time use only"?
Because retinal degrades in sunlight. Also, your skin repairs itself at night. That's when retinoids work best. Apply after cleansing, before moisturizer. PM only.
Will it help with acne?
Yes. Retinal is actually approved for acne in some countries. It unclogs pores and reduces inflammation. The 0.1% strength is good for mild to moderate acne.
Is it safe during pregnancy?
No. Retinoids (including retinal) are not recommended during pregnancy or breastfeeding. Consult your doctor.
My Honest Take
Here's where I land.
Skincare is full of lies. Products promise the world and deliver nothing. Retinol is real. It works. But it works slowly. Like watching grass grow.
Retinal is the same thing, but faster. And the celimax formula adds peptides to make it even better.
Is it a miracle? No.
Did it erase my wrinkles? No. Nothing does except Botox or Photoshop.
But after 6 weeks, my skin looks better. Smoother. Brighter. The fine lines are shallower. The pores are smaller. My husband noticed. That's enough for me.
The purge at week 3 was annoying. The yellow tint is weird. You absolutely must wear sunscreen or you'll regret it.
But for 5 a month for medical-grade skincare. You can't beat that.
Buy this if: You've used retinol before and want stronger results. You're patient enough to get through the purge. You wear sunscreen every single day. You want faster anti-aging without a prescription.
Skip this if: You've never used a retinoid before (start with retinol). You have very sensitive skin (patch test first). You won't wear sunscreen. You're pregnant or nursing.
For the rest of us? This is the Upgrade.
One more thing before you go.
At 24), this is already cheap for a retinal serum. But Amazon runs K-Beauty sales often. It might drop to 22. The $20 price is the normal sale price.
But here's the real deal: 40,000+ people Bought this in the past month. That's not a typo. Forty thousand. In one month. For a $20 serum from a Korean brand most Americans haven't heard of.
That's word of mouth. That's people seeing results and telling their friends.
That's why I bought it.
👉 🔥 See today's price on Amazon (it changes often)
👉 👉 Check if the 16% off is still active
P.S. A Real Routine (If You Buy This)
PM Routine (every other night for 2 weeks, then every night):
Cleanse
Dry skin completely (water + retinal = irritation)
One drop of celimax retinal on fingertips
Pat gently over face (avoid eyes, lips)
Wait 5 minutes
Moisturizer
AM Routine (non-negotiable):
Cleanse (washes off the yellow tint)
Vitamin C (optional but helpful)
Moisturizer
SPF 50. Every. Single. Day.
Skip these steps? Skip the product. You'll just burn your face.
But follow them? In 3 months, you'll look in the mirror and see a difference. Not a new face. A better version of yours.
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