Very comfortable and non-irritating
“This is an excellent choice if you are looking for a cream containing PDRN! Very comfortable and non-irritating, leaves your skin super nourished!”
Aaliyah
THE SKIN REPORT
By Erin Calloway
SKININGREDIENTSROUTINE
100M+ tubes sold in Korea
Rated 4.8/5 across 748 reviews
30,000ppm TECA, not a token amount
Since 1968 four patents on the extraction
ACTIVES · WHY RETINOL STOPS MOVING
5 Reasons Your Retinol Stopped Working, And What Korean Women Put On Instead
(#2 is the one people mistake for progress)
By Erin Calloway · Last Updated September 2026 · 7 min read
Three retinols on the shelf in ascending strengths.
100M+Tubes sold in Korea
30,000ppmTECA in Time Reverse
20,000ppmPDRN in Active Renew
1968Dongkook Pharmaceutical
30 dayMoney back guarantee
You did everything the internet told you.
You started low. You went slow. You buffered it with moisturizer, you skipped nights, you bought the one the dermatologist on TikTok said to buy, and for a while your skin looked genuinely better.
Then it stopped. Not dramatically. It just quietly stopped moving, and somewhere around month four you noticed you were still using it out of obligation rather than because anything was changing.
Most women conclude the retinol was not strong enough and go up a percentage. That is usually the wrong direction, and here are five reasons why.
The Madeca Best Duo
PDRN repair cream, then 30,000ppm TECA firming cream. Sixty seconds a night, in that order.
See the current offerDongkook, est. 1968 · Free express shipping · 30 day guarantee
The strength was never the problem.
- ×Retinol speeds up the surface. It does not rebuild underneath.
- × Stinging and flaking past a few weeks is a barrier running out of road.
- × Going up a percentage asks more of a barrier that is already short.
- × Buffering is a workaround for a repair step nobody told you to do.
- × And the routine collects rules until you quietly stop.
See what women are using instead
Buy 2 Get 1 Free, thirty days to decide
#1
Retinol speeds up the surface. It does not rebuild underneath.
(two different layers, two different jobs)
Retinol works by pushing the top layer of your skin to turn over faster. On texture, tone and fine lines that is real, and it is why it earned its reputation.
What it does not do is rebuild the layer below it, where skin actually renews itself and where slackness starts. Speeding up the surface does nothing for a foundation that is thinning.
So you get the first four months of improvement, which is the surface catching up, and then a plateau, which is the surface having caught up and nothing underneath having changed.
#2
The purge is not progress. It is a barrier running out of road.
(irritation is a cost, not a receipt)
The standard advice is that stinging, flaking and redness mean it is working. Sometimes that is true early on. Past a few weeks it usually means the barrier is spending more than it is earning.
A barrier under constant pressure holds less water, calms down more slowly and gets less out of everything you put on top of it. Which is why women who push through the irritation often end up with skin that is smoother and more reactive at the same time.
You can feel this one yourself. If your skin has become touchy in the last year, the retinol is not the thing to increase.
What it costs against what you have already spent
What the retinol route has already cost
- Dermatologist visit for a prescription$75 to $200
- Three retinols at ascending strengths$90 to $270
- Barrier creams bought to cope with it$60 to $180
- The moisturizer you buffer with$40 to $120
- Repeat prescription across a year$120 to $360
A typical first year$385 to $1,130
The two creams, six months$74.99
Typical US ranges. Nothing here asks you to stop using retinol. Ours is the Buy 2 Get 1 Free price and it is not a subscription.
See what women are using instead
Buy 2 Get 1 Free, thirty days to decide
#3
Korea does not drop retinol. It repairs first, then uses it.
(the order is the whole thing)
In Seoul the sequence is fixed. Repair the barrier, then work on the surface. Not the other way round, and never the surface alone.
The repair step is PDRN. It appears on an ingredient list as sodium DNA, and it came out of wound care rather than cosmetics, which is why Korean clinics apply it the moment a laser treatment finishes, when the barrier is at its most fragile.
Only then does the second step go on, and the second step is where the retinol lives, alongside TECA, the concentrated form of centella asiatica.
Same active you were already using. Different footing underneath it.
- Step one, PDRN. Rebuilds the layer retinol cannot reach
- Step two, Time Reverse. 30,000ppm TECA with retinol on the surface
- Reversed, the second step is what stings
Side by side, honestly
| Going up a percentage | Repairing first | |
|---|---|---|
| What it costs | $385 to $1,130 a year | $74.99 for six months |
| What it works on | The surface, faster | The layer underneath |
| Irritation | More, by design | None for most, per the reviews |
| Rules attached | Buffer, alternate nights, ease in | Two steps, every night |
| Sun sensitivity | Higher | Unchanged |
| If it does nothing | You go up again | Thirty days, money back |
#4
Two creams and sixty seconds, with nothing to buffer
(no skip nights, no sandwiching)
Cleanse. PDRN first, pea sized, patted in. Time Reverse straight over the top. Go to bed.
There is no buffering step, no alternate night schedule and nothing to rinse. The repair layer is doing the job that buffering was a workaround for.
That matters more than it sounds. Almost nothing fails on the formula. It fails at the point it becomes a chore, and a retinol routine with rules attached is the easiest thing in the world to quietly stop doing in February.
Both creams are made by Centellian24, owned by Dongkook Pharmaceutical, who have been working on centella extraction since 1968 and hold four patents on the extraction alone. The cream has sold over 100 million tubes in Korea, a country of 52 million people.
Sixty seconds, every night
- Step 1Cleanse and leave the skin slightly damp
- Step 2PDRN repair cream first, a pea sized amount, face and neck
- Step 3Time Reverse over the top, same amount
- MorningSunscreen. Nothing else changes
- PDRN at 20,000ppm, the repair step Korean clinics inject
- 30,000ppm TECA, the concentrated Centella fraction
- Madecassoside, the wound healing compound in both creams
- Niacinamide for tone and pores
- Four patents on the extraction, held since 1968
What is actually in them
What to honestly expect
- Week 1 to 2Skin feels calmer and less tight. Nothing you could photograph yet
- Week 3 to 5Redness settles and texture smooths. Most people stop here and should not
- Week 6 to 8Firmness is the slow one. This is where the jawline shows up
- Week 8+It compounds. This is the point of doing it nightly rather than sometimes
See the current offer
Free express shipping, three to five days
4.8748 Reviews
The Cream That Changed Everything
I really like how it softens my skin
“Been really enjoying this one! it's a little thicker and has a sweeter scent than the time reverse zero, I really like how it softens my skin. Love it!”
Nia
89%
of users noticed calmer, more hydrated skin within the first week
A perfect choice even for my sensitive skin
“Genius cream, easy to apply and non-irritating, a perfect choice even for my sensitive skin.”
Nia K.
Very soft and gentle
“I absolutely love the way it leaves my skin. Very soft and gentle.”
Skylar
91%
of users noticed firmer, smoother skin within the first two weeks
Who this is actually for
- You have been on retinol for months and it has stopped moving
- You are about to go up a strength
- Your skin stings, flakes or stays red and you were told that is progress
- You will do two steps at night and nothing more
- You would rather repair first for $74.99 than buy the next percentage
This is for you if
The part nobody puts on the page
Most women reading this have a shelf with two or three retinols on it in ascending strengths, and the total is well past a hundred dollars.
The two creams together are $39.99. Retail for the pair is $66.50, and the gap is there because we import direct rather than through a US distributor.
Two 50ml tubes used once a night is roughly two months. That works out at under seventy cents a day.
Most people take the Buy 2 Get 1 Free, which is six months of both creams for $74.99. That is forty two cents a day, and barrier repair is slow enough that running out in month three is the one way to learn nothing.
- 4.8 out of 5 across 748 reviews, the critical ones still up
- 30,000ppm TECA, not a token amount added for the label
- Over 100 million tubes sold in Korea, a country of 52 million
- Made by a pharmaceutical company working on this since 1968
- Free express shipping, three to five days
- Sixty seconds a night, no skip nights
Free express shipping, three to five days
Do I stop my retinol?
You do not have to. The second cream already carries retinol alongside the TECA, so most people simply swap rather than stack. If you want to keep a separate prescription product, put the repair step underneath it and give it a fortnight before you judge anything.
My skin is reactive right now. Is this the wrong time?
It is the usual time, in fact. If your skin is unhappy, use the repair step on its own for a week and add the second cream after. Nothing here needs you to push through stinging.
How fast will I see anything?
Calmer skin in the first week or two. Texture around week three to five. Firmness is the slow one and it lands closer to week six to eight. Anyone promising a jawline in seven days is selling you another lap.
Do I have to do it every night?
Nightly is what the reviews are based on. Five nights a week still moves. Twice a week does not, and I would rather tell you that now than take your money.
Is PDRN safe, and what actually is it?
Polydeoxyribonucleotide, derived from salmon DNA. Korean dermatology clinics have used it for years and it is what they inject in the repair step. This is the topical version at 20,000ppm from Dongkook, a pharmaceutical company established in 1968. It is a cosmetic, not a drug, and it is not intended to treat any condition.
Will it break me out?
The firming cream is rich, which is why it is a night cream. Patch behind the ear for two nights if you are reactive. Both passed skin irritation testing. Skin is skin and mine is not yours.
What if it does nothing for me?
Thirty days, money back, and you are not asked to post the creams back. That is the only reason I tried it instead of keeping the appointment.
#5
Thirty days, and you keep the creams
(no form, no return label)
This is the part most pages bury and it should not be buried.
Use it for thirty days. If nothing has changed, email and you get your money back. You keep the creams. There is no form, no return label, and nobody asking you to explain yourself.
That is possible because the repeat purchase rate is what it is. 4.8 out of 5 across 748 reviews, and the critical ones are still on the page because deleting them would tell you less than leaving them up.
What women actually wrote
I have used the whole tube now and my skin has improved a lot. I used to suffer of very sensitive, irritated skin but now I can apply many aging treatments if I follow up with this cream. Lovely consistency and feel on the skin. I am going to repurchase it everytime if it is on special.
Colleen, verified buyerSensitive, irritated skinA very good moisturizer for sensitive, irritated skin. absorbs quickly and provides solid hydration. it is my favorite night cream
hyejin singh, verified buyerSensitive skin, night creamlove this. even for sensitive skin. makes such a difference after using for one week. already reordered
Mason, verified buyerSensitive skin, one weekGoing up a percentage is the obvious move and it is the one that got you here.
Two creams, sixty seconds a night, and thirty days to find out whether the problem was ever the strength.
See the current offer
4.8 from 748 reviews and a 30 day guarantee
Sources
- Centellian24 is made by Dongkook Pharmaceutical, which has worked on centella asiatica extraction since 1968 and holds four patents on the extraction.
- Review figures are taken from verified purchases on this store and were 4.8 out of 5 across 748 reviews at the time of writing.
The customer reviews shown here are real and unedited, taken from verified purchases on this store. Individual results vary. This is a cosmetic product and nothing here is medical advice.