Mary & May
Rice Niacin 10% Triple Vitamin Serum
Rice Niacin 10% Triple Vitamin Serum is Mary & May's serum, a Korean-market formula built around Niacinamide named on its own manufacturer ingredient list.
No reviews yet80 ml
$22.05 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- Sensitive skinNormal skinDry skin
- Helps with
- A formula built around NiacinamideA treatment serum stepA layered Korean routine
In stock. Arrives in 3 to 7 business days
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- 30-day returns
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- Tracked delivery to your door
How it works
Mary & May is a Korean skincare label built around vegan, ingredient-forward formulas positioned as everyday, budget-conscious routine staples, and Rice Niacin 10% Triple Vitamin Serum is one of its serum entries. Niacinamide sits among the first ingredients on the list, the tone-evening, barrier-supporting active Korean formulas lean on most often, and its early position here means it is not a token dose. Panthenol (pro-vitamin B5) sits within the first ten ingredients as the formula's moisture-retention and comfort ingredient, a standard soothing base in Korean-market formulas. 3-O-Ethyl Ascorbic Acid, a stabilised vitamin C derivative, sits within the first ten ingredients. Tocopherol sits further down the ingredient list, the antioxidant vitamin E form supporting the rest of the formula against oxidation. As a serum, it functions as a treatment step layered under moisturiser in a layered Korean routine. It comes in a 80ml format.
Key benefits
- Mary & May's Rice Niacin 10% Triple Vitamin Serum, sourced for the Korean market rather than reformulated for US shelves
- Formulated around Niacinamide, named on the manufacturer's own ingredient list
- Formulated around Panthenol, named on the manufacturer's own ingredient list
- Formulated around 3-O-Ethyl Ascorbic Acid, named on the manufacturer's own ingredient list
- Functions as a treatment step layered under moisturiser
How to use
- Apply a few drops to cleansed skin and pat in gently before moisturiser.
What does Niacinamide do in this serum?
Niacinamide sits among the first ingredients on the list, the tone-evening, barrier-supporting active Korean formulas lean on most often, and its early position here means it is not a token dose.
Is Panthenol also in this formula?
Panthenol (pro-vitamin B5) sits within the first ten ingredients as the formula's moisture-retention and comfort ingredient, a standard soothing base in Korean-market formulas. It sits alongside Niacinamide on Mary & May's ingredient list for this product.
How is this serum used in a routine?
Apply a few drops to cleansed skin and pat in gently before moisturiser. It works as a treatment step layered under moisturiser.
Who is this serum suited for?
Sensitive skin, Normal skin are the best fit for this serum. Patch test on the inner arm before first full use, as with any new skincare product.
Not on the ingredient list below: fragrance or parfum, denatured or SD alcohol, essential oils, parabens, sulfate surfactants, mineral oil or petrolatum and added color.
Full INCI (27): Purified Water, Niacinamide, Butylene Glycol, Panthenol, Glycerin, Caprylic/Capric Triglyceride, Vinyl Dimethicone, Rice Extract, 3-O-Ethyl Ascorbic Acid, Cetearyl Olivate, 1,2-Hexanediol, Alpha-Bisabolol, Hydroxyacetophenone, Sorbitan Olivate, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Polyisobutene, Polyglyceryl-10 Laurate, Tocopherol, Ammonium Acryloyldimethyl Taurate/VP Copolymer, Glyceryl Acrylate/Acrylic Acid Copolymer, Caprylyl/Capryl Glucoside, Sorbitan Oleate, Hydrogenated Lecithin, Glutathione, Disodium EDTA, Citric Acid, Sodium Citrate
Ingredient list read from jolse.com on 10 September 2026.
26 of 27 explained
- Purified Water solvent
- Water is the base almost every serum, toner and cream is built on. It dissolves the water-loving ingredients and sets how light the finished texture feels. On an INCI list it is usually first, which only means it is the largest single ingredient by weight.
- Niacinamide active
- Niacinamide is vitamin B3, and it is the most studied active in Korean formulation. It is used at roughly 2 to 5 percent for the look of uneven tone and visible pores, and it is water soluble, stable and comfortable beside almost every other active, which is why it turns up in so many lists.
- Butylene Glycol humectant
- Butylene Glycol is a small glycol that does two jobs at once: it holds water in the top layer of skin and it dissolves plant extracts and actives that plain water cannot. It also thins a formula, which is why watery Korean essences lean on it.
- Panthenol humectant
- Panthenol is pro-vitamin B5: skin converts it to pantothenic acid. It is a humectant that holds water and leaves skin feeling soft and less tight, and it is one of the ingredients formulators reach for when a formula also contains something harsh.
- Glycerin humectant
- Glycerin is the most used humectant in skincare. It draws water into the outer layer of skin and holds it there, and it is one of the very few ingredients whose hydrating effect is settled science rather than marketing. Higher amounts feel tacky, which is why it is usually blended.
- Caprylic/Capric Triglyceride emollient
- Caprylic/Capric Triglyceride is the light fraction of coconut oil, with the heavy parts removed. It is the workhorse emollient of modern formulas: it softens skin, dissolves oil-soluble actives and absorbs without the greasy weight of a whole plant oil.
- Vinyl Dimethicone silicone
- Vinyl Dimethicone is a silicone used as a building block of the crosspolymer gels that give a formula its soft, blurring feel.
- 3-O-Ethyl Ascorbic Acid antioxidant
- 3-O-Ethyl Ascorbic Acid is a stable vitamin C derivative that skin converts to ascorbic acid. It survives in a formula far better than pure vitamin C and works at a gentler pH, so it suits skin that finds the pure acid uncomfortable.
- Cetearyl Olivate emulsifier
- Cetearyl Olivate is the water-loving half of the olive-derived emulsifier pair. With sorbitan olivate it builds emulsions whose lipid profile is close to skin's own.
- 1,2-Hexanediol humectant
- 1,2-Hexanediol is a glycol used for two reasons: it holds water like glycerin, and it makes a formula harder for microbes to live in, so less traditional preservative is needed. Korean formulas use it heavily for that second reason.
- Alpha-Bisabolol active
- Bisabolol is the main active fraction of chamomile oil, usually supplied from candeia wood. It is used for the look of redness in formulas for reactive skin, and it helps other ingredients absorb.
- Hydroxyacetophenone preservative booster
- Hydroxyacetophenone is an antioxidant that also strengthens a preservative system, so a formula needs less traditional preservative. Korean formulas pair it with 1,2-hexanediol constantly.
14 more explained
- Sorbitan Olivate emulsifier
- Sorbitan Olivate is an olive-derived emulsifier, the oil-loving half of the pair sold as Olivem. It holds oil into water and leaves a light, non-waxy feel.
- Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer thickener
- This is a pre-neutralised polymer thickener that gels on contact with water and stabilises an emulsion without heat.
- Polyisobutene film former
- Polyisobutene is a synthetic polymer that forms a flexible, water-resistant film. It gives gloss and holds a formula in place, which is why it appears in lip products and long-wear textures.
- Polyglyceryl-10 Laurate emulsifier
- Polyglyceryl-10 Laurate is a sugar-derived emulsifier and solubiliser, mild enough to be a standard choice in Korean essences. It dissolves small amounts of oil into water without any tightening feel.
- Tocopherol antioxidant
- Tocopherol is vitamin E. It is an oil-soluble antioxidant that protects the oils in a formula from going rancid and works on skin as an emollient, and it is regularly paired with vitamin C because each keeps the other going for longer.
- Ammonium Acryloyldimethyl Taurate/VP Copolymer thickener
- This is a synthetic thickener that gels quickly and holds an emulsion stable across a wide pH range. It gives a light, non-tacky body.
- Glyceryl Acrylate/Acrylic Acid Copolymer film former
- This is a polymer that forms a moisture-holding film on the surface, usually supplied with glycerin and propylene glycol as a hydrating complex.
- Caprylyl/Capryl Glucoside surfactant
- Caprylyl/Capryl Glucoside is a sugar-derived cleansing surfactant. It foams modestly and is mild enough for low-pH cleansers built for reactive skin.
- Sorbitan Oleate emulsifier
- Sorbitan Oleate is an emulsifier for water-in-oil formulas. It keeps a rich cream or a cleansing oil from separating.
- Hydrogenated Lecithin emulsifier
- Hydrogenated Lecithin is lecithin with its unsaturated bonds filled in, which makes it far more stable. It emulsifies and is the standard shell for the liposomes that carry actives into the outer layer of skin.
- Glutathione antioxidant
- Glutathione is a small peptide the body uses as one of its main antioxidants. In skincare it is used as an antioxidant and for the look of dullness; it is unstable in water, so formulas that carry it are usually built around protecting it.
- Disodium EDTA chelator
- EDTA is a chelator: it locks up trace metal ions from water and packaging that would otherwise turn a formula cloudy, off-colour or rancid. It does nothing to skin and appears at a fraction of a percent.
- Citric Acid pH adjuster
- Citric Acid is used in tiny amounts to bring a formula to the pH its actives need, not as an exfoliant at that level. It is an AHA, so at much higher concentrations it can also exfoliate.
- Sodium Citrate pH adjuster
- Sodium Citrate is the salt of citric acid, used as a buffer: it holds a formula at a steady pH rather than pushing it in one direction. It is also a mild chelator.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809670682682
- Made in
- Republic of Korea
- Volume
- 80 ml
- Category
- Serum & Ampoule
- Actives
- Bisabolol, Glutathione, Niacinamide, Panthenol, Vitamin C
- Ships from
- California or Korea
Orders ship from California or direct from Korea with tracked delivery to your door, and both routes carry the same Korean-market release. Shipping is free on orders of $100 or more. Returns are accepted for 30 days, by mail.
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 - 2Barcode
Listed against the Korean barcode on its box - 3California or Korea
Ships to you from either, as the same Korean-market release
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. The barcode in the specification above is the Korean-market one and it is printed on the box you receive.
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.
Every order ships from California or direct from Korea, 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.
Inside the formula
Inside the formula
Worth knowing
- Patch test on the inner arm before first full use, as with any new skincare product.
- Introduce a new active gradually into an existing routine rather than adding several at once.
Complete the routine
- This itemMary & May Rice Niacin 10% Triple Vitamin Serum$17.64

- Seal the routine in as the last stepMary & May Sensitive Soothing Gel Cream 100g$30.00

- The treatment step of this routineMary & May Centella Asiatica Serum 30ml$20.00

Total for 3 items$67.64
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Mary & May Rice Niacin 10% Triple Vitamin Serum
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Mary & May, Korean-market original
Mary & May's Rice Niacin 10% Triple Vitamin Serum, sourced for the Korean market.
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.
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 skin care, quoted from the medical sources linked beside each.
Your skin barrier is basically your outer layer of the skin.
Melissa Piliang, MDDermatologist, Cleveland Clinic Pretty much every step of a Korean skin care routine is going to have some component of hydration.
Alok Vij, MDDermatologist, Cleveland Clinic
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