Where does this product go in my routine?

After your sunscreen has settled, as the first makeup step of the morning. Anything thinner than a product 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 Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate and not three changes at once.

Is this the Korean-market product or a US version?

The Korean-market one, Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate and all. We match this product to its Korean barcode before it reaches the shelf, which is the check that tells you which market release you are holding.

Does this product contain fragrance?

Yes. The ingredient list names Fragrance. It sits on the panel printed on this page, so you can read the position for yourself before you buy. If fragrance components are something you avoid, this product is not the one.

What else is on the list besides Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate?

Backhousia Citriodora (Lemon Myrtle) Leaf Extract, Synthetic Beeswax and Sodium Hyaluronate. The order they are printed in on this product's panel is the order on the box, so you can see where Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate sits relative to them. Further down the same panel: Polyglutamic Acid, Hyaluronic Acid and Hydrolyzed Hyaluronic Acid.

JUNGSAEMMOOL

Pro-lasting Prep Primer 30ml

Name: JUNGSAEMMOOL Pro-lasting Prep Primer 30ml
Brand: JUNGSAEMMOOL
SKU: 10407646360
Price: 47.5 USD
Availability: InStock

JUNGSAEMMOOL Pro-lasting Prep Primer is a 30ml product with Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate, used after your sunscreen has settled, as the first makeup step of the morning.

No reviews yet

$47.50

30 ml

$158.33 per 100 ml

Korean-market formula
Ships from California or direct from Korea
Korean barcode and batch code intact

Suited to: Dry skinCompromised barrierDehydrated skinSensitive skin

Helps with: Shoppers looking for Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate in a productRoutines that want Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate and Backhousia Citriodora (Lemon Myrtle) Leaf Extract in one stepFilling the product step with a Korean-market formulaAnyone who wants the Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate product sold on Korean shelves

In stock. Arrives in 3 to 7 business days

You’re $100.00 away from free US shipping.

30-day returns
Free US shipping on orders of $100 or more
Tracked delivery to your door

Verified authentic Shipping and returns

How it works

The Pro-lasting Prep Primer is a 30ml product, used after your sunscreen has settled, as the first makeup step of the morning. The antioxidant it is built around is Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate, named thirty-second on its own ingredient list. The same list carries Backhousia Citriodora (Lemon Myrtle) Leaf Extract, Synthetic Beeswax and Sodium Hyaluronate, so the antioxidant is not the only thing on it worth naming. How much of the Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate stays on the skin, and for how long, is decided by the product format rather than by the list alone. This is the Original Korean Formula, the product JUNGSAEMMOOL sells in Korea, Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate and all.

Key benefits

Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate, the antioxidant this product is built around
Backhousia Citriodora (Lemon Myrtle) Leaf Extract on the same list, a plant extract
Synthetic Beeswax on the same list, an occlusive
Sodium Hyaluronate and Polyglutamic Acid on the same list, humectants
Hyaluronic Acid and Hydrolyzed Hyaluronic Acid further down the same list
Potassium Hyaluronate further down the same list

How to use

Apply to cleansed, moisturised skin before the rest of a complexion routine.

1 of 3

37 of 40 explained

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.
Dimethicone silicone: Dimethicone is the most used cosmetic silicone. It forms a breathable film that smooths the surface, slows water leaving skin, and gives the slip that makes a primer or cream feel silky. It is inert and does not penetrate.
Cyclopentasiloxane silicone: Cyclopentasiloxane is a volatile silicone: it spreads a formula thin and smooth then evaporates, leaving no residue. It is the silicone behind a dry, powdery primer finish.
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.
Dimethicone/Vinyl Dimethicone Crosspolymer silicone: This is a silicone elastomer, a soft springy gel. It fills the look of fine texture and gives the velvety, blurred finish of a primer.
Cyclohexasiloxane silicone: Cyclohexasiloxane is a volatile silicone used for a light, fast-spreading feel that leaves nothing behind.
Phenyl Trimethicone silicone: Phenyl Trimethicone is a silicone with a higher refractive index than most, so it adds visible gloss as well as slip. It is common in glow and lip textures.
Dimethicone Crosspolymer silicone: Dimethicone Crosspolymer is silicone linked into a soft, springy network. It soaks up oil, blurs the look of texture, and gives the velvety feel of a primer.
Methyl Methacrylate Crosspolymer absorbent: Methyl Methacrylate Crosspolymer is a polymer in fine sphere form. It absorbs oil, soft-focuses the look of texture and gives a powdery slip.
PEG-10 Dimethicone silicone: PEG-10 Dimethicone is a silicone with a water-loving chain attached, so it bridges the silicone and water phases. It is used as an emulsifier and to give a light, silky feel.
Cetyl PEG/PPG-10/1 Dimethicone silicone: A silicone emulsifier used to hold water inside an oil or silicone phase. It is the standard emulsifier in a cushion or a silicone-based primer.
Magnesium Sulfate mineral: Magnesium Sulfate is Epsom salt, used as a mineral salt in the water phase. Despite the name it is not a cleansing sulfate and does not foam.

25 more explained

Caprylyl Glycol preservative booster: Caprylyl Glycol is a glycol that conditions skin and, more importantly, strengthens a preservative system so less of the traditional preservative is needed. It appears in most modern formulas built without parabens.
Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer silicone: A silicone elastomer powder. It changes how light falls on skin so texture looks softer, absorbs a little oil, and leaves a dry velvet finish.
Polymethylsilsesquioxane silicone: Polymethylsilsesquioxane is a silicone resin in fine sphere form. It soft-focuses the look of pores and lines and gives a smooth, powdery finish.
Fragrance fragrance: Fragrance, or Parfum, is a single declaration standing for a whole scent blend, which can be dozens of materials. Regulators allow it as a trade secret, so a list showing only this word does not say what the scent is made of. It is the most common trigger named by people with reactive skin.
Synthetic Beeswax occlusive: Synthetic Beeswax is a lab-built blend of esters and waxes matched to beeswax. It thickens and sets a formula, and unlike real beeswax it contains nothing from bees.
Silica Silylate absorbent: Silica treated so it repels water. It absorbs oil, mattifies, and keeps a formula from feeling wet as it sets.
Ethylhexylglycerin preservative booster: Ethylhexylglycerin softens skin and boosts a preservative system, which is why it is nearly always sitting beside phenoxyethanol or 1,2-hexanediol. It also cuts down the odour bacteria produce, so it turns up in deodorising products.
Ultramarines colorant: Ultramarines are blue to violet mineral pigments. In skincare they are used in tiny amounts to shift a yellow-looking base back toward neutral.
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.
Trisodium Ethylenediamine Disuccinate chelator: A readily biodegradable chelator used in place of EDTA. It ties up trace metal ions in the water so they cannot spoil the formula.
Triethoxycaprylylsilane silicone: Triethoxycaprylylsilane is a coating applied to mineral powders so they disperse evenly and resist water rather than clumping.
Aluminum Hydroxide absorbent: Aluminum Hydroxide is a mineral powder used to coat pigments so they disperse evenly, and to absorb a little oil. It is not an antiperspirant salt.
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.
Sodium Hyaluronate humectant: Sodium Hyaluronate is the salt of hyaluronic acid, and it is what most products labelled hyaluronic actually contain. The salt dissolves more readily and the molecule is smaller, so it sits in the outer layer of skin rather than only on top of it.
Backhousia Citriodora Leaf Extract plant extract: Lemon myrtle leaf extract, an Australian botanical high in citral. It carries the lemon aroma of the leaf along with polyphenols and is used as an aromatic plant extract.
Polyglutamic Acid humectant: Polyglutamic Acid comes from fermented soy and holds several times more water than hyaluronic acid for its weight. It forms a light film on the surface, so it is often layered with hyaluronic rather than replacing it.
Kaolin absorbent: Kaolin is white clay, the mildest of the cosmetic clays. It absorbs oil and lifts loose debris from the surface without stripping, which is why it is the clay used on drier skin.
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate antioxidant: This is a stabiliser that keeps the oils and fragrance in a formula from oxidising. Its job is the shelf life of the product rather than any effect on skin.
Hyaluronic Acid humectant: Hyaluronic Acid is a sugar chain the body already makes, and one gram of it can hold several litres of water. In a formula it is a humectant that pulls water to the surface of skin and holds it in a film, which is what makes skin look plumper while it is there.
Hydrolyzed Hyaluronic Acid humectant: Hydrolyzed Hyaluronic Acid is hyaluronic acid cut into much shorter fragments. The smaller the fragment, the further into the outer layer it can settle, which is why serums stack several sizes together instead of using one.
Hydroxypropyltrimonium Hyaluronate humectant: Hydroxypropyltrimonium Hyaluronate carries a positive charge, and skin carries a slight negative one, so it is attracted to the surface and stays through rinsing. It is the hyaluronic used where a formula gets washed off.
Potassium Hyaluronate humectant: Potassium Hyaluronate is another salt of hyaluronic acid, used for the same reason as the sodium form: it dissolves easily and holds a large amount of water in the outer layer of skin.
Sodium Hyaluronate Crosspolymer humectant: Sodium Hyaluronate Crosspolymer is hyaluronic acid linked into a mesh. It holds water in a soft gel on the surface rather than sinking in, and it releases that water slowly through the day.
Pentylene Glycol humectant: Pentylene Glycol hydrates and, like the other longer-chain glycols, makes a formula less hospitable to microbes so the preservative system can be lighter. It also improves how evenly a product spreads.
Sodium Acetylated Hyaluronate humectant: Sodium Acetylated Hyaluronate is hyaluronic acid modified to be part oil-loving, so it clings to skin instead of rinsing away. Formulators call it the one that stays put.

Inside the formula

Ingredients declared

#17

Fragrance on the list

Worth knowing

Patch test this product on a small area and wait a day before using it more widely, especially with Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate on the list.
This list names Fragrance, so skip it if fragrance components are something you avoid.

Complete the routine

This itemJUNGSAEMMOOL Pro-lasting Prep Primer 30ml$47.50
Seal the routine in as the last stepJUNGSAEMMOOL Essential Mool Cream Light 50ml$65.00
From the same Korean-market lineJUNGSAEMMOOL Essential Powder Illuminator 10g$55.00

Total for 3 items$167.50

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JUNGSAEMMOOL Pro-lasting Prep Primer 30ml

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JUNGSAEMMOOL, Korean-market original

The Original Korean Formula product from JUNGSAEMMOOL, 30ml formulated with Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate and Backhousia Citriodora (Lemon Myrtle) Leaf Extract, shipped from California or direct from Korea.

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 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