There is a moment in almost every K-beauty order where this bottle gets added. Not as the main purchase — as the extra. The reasoning is always the same: it costs almost nothing, the bottle is huge, and centella is the ingredient everyone's skin seems to tolerate. We checked its listing this morning, November 11, 2026, and the "almost nothing" part has become literal: $1.09, down from $5.27 in October, against a regular price of $18.04. At that point the interesting question stops being the price and becomes the product: what is this ampoule actually for?
The verdict on one screen
One ingredient is the whole idea
Most serums compete on ingredient lists — the longer, the louder. SKIN1004 built this one the other way: the formula is built around centella asiatica extract sourced from Madagascar, and that restraint is the product. Centella is the classic calming ingredient in Korean skincare, the one dermatologists reach for when skin is reactive, flushed or recovering. An ampoule that does essentially only that turns out to be more useful than it sounds, because calming is the step every other product assumes you have handled.
It is also why the bottle is 100ml — two to three times the size of a typical serum. A watery ampoule you apply generously, morning and night, sometimes in two layers, gets used at a completely different rate than a precious 30ml dropper bottle. The size is not a bonus; it is the usage model.
Where it sits in a routine
First serum step, right after cleansing (or toner), before anything thicker. In our beginner routine guide this is the gentle layer that makes the rest of the routine possible for sensitive skin. Two patterns get the most out of it: patting on a second layer over cheeks that flush easily, and using it as the buffer under stronger products — vitamin C or retinoids — on nights your skin feels reactive.
In winter, it is the hydration-and-calm layer underneath a barrier cream — in our pool, the natural partner is the Dr.Althea 345 cream: ampoule first, cream to seal. Neither product is trying to do the other's job, which is exactly why the pair works.
Above: the sealing step. Ampoule for calm and hydration, cream on top to keep winter air from undoing it.
The honest limits
It will not brighten dark spots, treat acne or replace a moisturizer — it is a calming water layer, and judging it as anything else makes it look like a failure it never claimed to avoid. The listing's own numbers are modest (4.7 stars, 19 reviews, 296 sold on this listing), which we read as a fair reflection of what it is: a quiet staple people reorder, not a viral event. And the $1.09 headline is a new-shopper price, one per shopper — returning accounts see a price nearer the regular $18.04, which is still reasonable for 100ml, just not absurd.
The price, checked today
October 26: $5.27. This morning, November 11: $1.09 for new shoppers. Free shipping either way, with delivery estimated November 20–27 — the one practical catch. If you are buying against a deadline, order early; if you are stocking a shelf, the timing hardly matters. Event pricing moves daily, and this is the kind of promotion that ends without an announcement.
US $1.09* (new-shopper price; regular $18.04; AliExpress US, checked Nov 11, 2026)
See the Centella Ampoule on AliExpress
Questions, answered
Is an ampoule different from a serum?
In Korean skincare the words overlap heavily. "Ampoule" usually signals a concentrated, single-purpose formula — here, centella — used like a serum step. Treat it as your serum step and you will not go wrong.
Can I layer it twice?
Yes — its watery texture is built for it. A second layer over the cheeks and any area that flushes easily is the most common way people use up the big bottle, especially in winter.
Does it work for oily skin?
It is one of the better fits in this guide series for oily and combination skin: water-based, non-greasy, and it absorbs fully. Oily skin that flushes or reacts to stronger products is close to its ideal user.
Why is my price higher than $1.09?
The $1.09 price is reserved for new AliExpress shoppers and capped at one bottle. Existing accounts are shown a higher price, closer to the regular $18.04. The listing price you see is the final word.
Where this ampoule appears in our guides
· The beginner routine — 4 steps, 4 products, this one included
· Korean skincare for dry winter skin — the barrier-first guide
· AliExpress 11.11 verified picks — today's prices across the whole pool
Prices marked * are AliExpress US prices checked on November 11, 2026 and move with promotions — the live listing price is the final word. Product details are from the verified listing linked in this post.