IOPE Retinol Super Bounce Serum 30ml
IOPE runs two retinoids in this 30 ml serum, hydroxypinacolone retinoate thirty-first and retinol thirty-third, declared at 509 IU per gram, on a 45 entry list, over squalane third and lactobacillus ferment lysate eighth. Evening only: build the nights up slowly. Korean-market formula.
No reviews yet- Ships from our California warehouse
- Duties prepaid
- Suited to
- Dehydrated skinSensitive skinSkin that has lost bounceDull, uneven tone
- Helps with
- Shoppers looking for Retinol in a serumRoutines that want Retinol and Madecassoside in one stepFilling the serum step with a Korean-market formulaAnyone who wants the Retinol serum sold on Korean shelves
In stock. Ships from our California warehouse, dispatched within 2 business days
You’re $100.00 away from free US shipping.
- Duties prepaid
- 30-day returns
- Free US shipping on orders of $100 or more
- Dispatched within 2 business days
How it works
The Retinol Super Bounce Serum is a 30ml serum, used after toner and before moisturizer, morning and evening. The active it is built around is Retinol, named thirty-third on its own ingredient list. The same list carries Madecassoside, Hydroxypinacolone Retinoate and Acetyl Tetrapeptide-11, so the active is not the only thing on it worth naming. How much of the Retinol stays on the skin, and for how long, is decided by the serum format rather than by the list alone. This is the Original Korean Formula, the serum IOPE sells in Korea, Retinol and all.
Key benefits
- Retinol, the active this serum is built around
- Madecassoside and Hydroxypinacolone Retinoate on the same list, actives
- Acetyl Tetrapeptide-11 and Decapeptide-4 on the same list, peptides
- sh-Oligopeptide-1 and Lactobacillus Ferment Lysate further down the same list
- Beta-Carotene and Tocopherol further down the same list
- Retinol named thirty-third on the manufacturer list printed on this page
Key actives
Retinolactive
Retinol is the alcohol form of vitamin A and the strongest retinoid available without a prescription. Skin converts it in two steps to retinoic acid, and it is used at night, at low percentages, for the look of fine lines and rough texture. The name on the box points at it, and it is named thirty-third on this serum's own ingredient list.
Madecassosideactive
Madecassoside is the centella triterpene most associated with the look of redness, and the one brands lead with in cica products. It is water soluble and stable, so it appears in essences as readily as in creams. The panel names it thirtieth on this serum's list, beside Retinol.
Hydroxypinacolone Retinoateactive
Hydroxypinacolone Retinoate is a retinoid ester that binds skin's retinoid receptors directly, with no conversion step. Brands use it where they want retinoid-style results with less of the flaking retinol brings. It is named thirty-first on this serum's list, alongside Retinol.
Acetyl Tetrapeptide-11peptide
Acetyl Tetrapeptide-11 is a four-amino-acid peptide used for the look of firmness, and it is the usual partner to acetyl tetrapeptide-9. It is named thirty-ninth on this serum's list, alongside Retinol.
Decapeptide-4peptide
Decapeptide-4 is a ten-amino-acid peptide, longer than most cosmetic peptides. Length changes how a peptide behaves in a formula, not how strong it is. It is named forty-second on this serum's list, alongside Retinol.
Where does this serum go in my routine?
After toner and before moisturizer, morning and evening. Anything thinner than a serum goes on before it, and anything richer goes on after. If you are adding it to a routine you already like, give it a week on its own first, so what you see is the Retinol and not three changes at once.
Is this the Korean-market serum or a US version?
The Korean-market one, Retinol and all. We match this serum to its Korean barcode before it reaches the shelf, which is the check that tells you which market release you are holding.
What else is on the list besides Retinol?
Madecassoside, Hydroxypinacolone Retinoate and Acetyl Tetrapeptide-11. The order they are printed in on this serum's panel is the order on the box, so you can see where Retinol sits relative to them. Further down the same panel: Decapeptide-4, sh-Oligopeptide-1 and Lactobacillus Ferment Lysate.
- Ships from
- California
Duties are prepaid. Nothing is owed at delivery. Returns are accepted for 30 days, by mail.
Orders ship from our California warehouse, dispatched within 2 business days, and arrive in 3 to 5 days. Shipping is free on orders of $100 or more.
We split shipments free, so one out-of-stock item never holds up the rest of your order.
Where this unit came from
- 1Seoul
Bought as Korean-market stock - 2Customs
Duty paid by us before it enters the US - 3California
Ships domestically, no international leg
We stock the version of a formula that is sold in Korea, not the release a brand prepares for another market under the same name.
Every unit keeps its original barcode and batch code intact, so the unit in your hands can be checked against the brand’s own records.
Import duties are paid by us before the parcel reaches you, so nothing is owed at the door, and returns run for 30 days.
Every claim on this page traces to the unit in the box, the barcode, the batch code and the price you can read for yourself.
Payment and security
We accept
How to use
- PM only, after toner, before moisturizer.
- Apply a few drops, avoiding the eye area.
- Start 2 to 3 nights a week and build up as skin tolerates it.
- Follow with moisturizer; use sunscreen the following morning.
Worth knowing
- Patch test this serum on a small area and wait a day before using it more widely, especially with Retinol on the list.
- Hydroxypinacolone Retinoate is on this list, so keep this serum to the evening and build the nights up slowly rather than starting nightly.
Reviews
No reviews yet. Tell us how much you love the product!
Write Reviews (opens in a new tab)We’re on gram!
Creators trying on authentic Korean skincare routines and products from us.
Rating a shelf of Dr. Althea products one by one.
Jasmine Loo · YouTube
Two hydrating serums side by side, IUNIK and Dr. Althea.
Kristin · YouTube
A walk through the Dr. Althea serum lineup and who each one suits.
auraofmahmuda · YouTube
A blunt first take on the Dr. Althea range.
Lexi Chang · YouTube
A first look at the viral 345 Relief Cream before buying.
Shelley Nayak · YouTube
A first try of the Dr. Althea serum on camera.
Hannah Ziad · YouTube
Korean-market original
The Original Korean Formula serum from IOPE, 30ml formulated with Retinol and Madecassoside, held in the United States and shipped domestically.
Verify your unit when it arrives
Verify your unit when it arrives
Korean-market stock with the original barcode and batch code intact, exactly as it left Korea.
Match the batch code on the box against the code printed on the bottle or tube itself; the two are stamped separately and should agree.
On the unit itself
- The Korean-market barcode, unaltered from the retail package.
- The manufacturer’s batch code, exactly as the maker printed it.
정품Genuine article, Korean-market stock
What professionals say
What professionals say
What skin-care professionals say about the key actives in this formula, quoted from the medical sources linked beside each.
Vitamin A has a molecular structure that's tiny enough to get into the lower layers of your skin, where it finds and boosts collagen and elastin, which is a protein that strengthens your skin's flexibility.
Wilma Bergfeld, MDDermatologist, Cleveland Clinic Centella can make your skin appear more hydrated, plumper and healthier.
Samantha Stein, PA-CDermatology physician assistant, Cleveland Clinic
1 more professional perspective
In skin, different peptides can encourage different things, from collagen formation to a reduction in inflammation to helping with wound healing depending on their structure.
Whitney Hovenic, MDDouble board-certified dermatologist and Mohs surgeon, Women's Health
Ask an AI assistant about this product
Ask an AI assistant about this product
Opens ChatGPT, Perplexity or Claude in a new tab with the question prefilled. Claude asks you to sign in first.









