What step does this go in my routine?

Right after toner and before serum, as a thin, layerable hydration step rather than a substitute for either. If your skin reacts in a way that feels off, stop use and give your skin a few days to settle before trying it again.

Do I need to rinse it off?

No, it stays on the skin and the next step is layered directly on top of it. If your skin reacts in a way that feels off, stop use and give your skin a few days to settle before trying it again.

How much should I use?

A few drops patted into the skin is typical; letting each layer absorb before adding the next matters more than using a large amount. If your skin reacts in a way that feels off, stop use and give your skin a few days to settle before trying it again.

Can I use it with a serum?

Yes, it is designed to be followed by a serum rather than used as a replacement for one. If your skin reacts in a way that feels off, stop use and give your skin a few days to settle before trying it again.

It is formulated to absorb fully before the next step; if it still feels tacky, give it another minute before layering serum on top. If your skin reacts in a way that feels off, stop use and give your skin a few days to settle before trying it again.

TONYMOLY

PREMIUM RX Swallow Nest Essence 55ml

Name: TONYMOLY PREMIUM RX Swallow Nest Essence 55ml
Brand: TONYMOLY
SKU: 4570728024
Price: 27.5 USD
Availability: InStock

TONYMOLY PREMIUM RX Swallow Nest Essence 55ml is a Korean-market essence, formulated as the step after toner and before serum.

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$27.50

55 ml

$50.00 per 100 ml

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

Suited to: Normal skinDry skinCombination skin

Helps with: Building hydration in thin, layerable stepsPrepping skin before serumFitting one more step into an existing routine

One-time purchase

$27.50

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$24.75

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Key benefits

What it is: a 55ml essence from TONYMOLY, from the PREMIUM RX Swallow Nest line.
Texture and use: a fluid lighter than a serum but with more body than a toner, used as the step after toner, before serum.
Original Korean Formula: the version sold on Korean shelves, not a US reformulation.
Sourced for the Korean market, with the packaging and barcode left intact.

Inside the formula

Ingredients declared

Last

Fragrance on the list

How to use

Use it straight after toner, pouring a small amount into clean palms rather than onto cotton.
Press it into the face and neck with flat hands, going over any drier areas a second time.
Move on to the next layer while the skin still feels slightly damp rather than fully dry.
Avoid rubbing it in with cotton wool, because wiping wastes most of the liquid and drags at the skin.

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45 of 50 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.
cetyl ethylhexanoate emollient: Cetyl Ethylhexanoate is a synthetic ester used as a dry-feeling emollient. It spreads easily, leaves a silky rather than oily finish, and helps disperse pigments and UV filters evenly.
dipropylene glycol humectant: Dipropylene Glycol is a glycol used as a solvent and a light humectant. Its main job is keeping the rest of the formula dissolved and the texture fluid rather than adding hydration of its own.
glycereth-26 humectant: Glycereth-26 is a modified glycerin that hydrates with far less stickiness than glycerin itself. It is a common way to load water into a formula that has to stay light.
propanediol humectant: Propanediol is a plant-derived glycol used in place of propylene glycol. It hydrates, carries actives into solution, and gives a lighter, less sticky slip than glycerin at the same strength.
peg/ppg-17/6 copolymer solvent: PEG/PPG-17/6 Copolymer is a water-soluble polymer used as a humectant and solubiliser. It keeps a formula fluid and helps oils stay dispersed.
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.
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.
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.
cyclohexasiloxane silicone: Cyclohexasiloxane is a volatile silicone used for a light, fast-spreading feel that leaves nothing behind.
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.
swiftlet nest extract protein: The extract of an edible bird's nest, which the swift builds from its own saliva. It carries glycoproteins and sialic acid and is used as a hydrating, conditioning extract.

33 more explained

coptis japonica root extract plant extract: Coptis Japonica is a traditional East Asian medicinal root, bright yellow from its berberine content. In skincare its extract is used for the look of congested, oily skin.
theobroma cacao (cocoa) seed extract plant extract: Cocoa Extract carries polyphenols and a little caffeine. It is used as an antioxidant plant extract and gives a faint warm tint.
prunus serrulata flower extract plant extract: Cherry blossom extract, the beotkkot of Korean spring. It carries flavonoids and is used as a conditioning extract.
butyrospermum parkii (shea) butter emollient: Shea Butter is the fat pressed from the shea nut, rich in oleic and stearic acids and unsaponifiable plant sterols. It is a heavy emollient and partial occlusive, which is why it sits in balms and night creams rather than in essences.
mangifera indica (mango) seed butter emollient: Mango seed butter, pressed from the kernel. It is a soft solid at room temperature and melts on skin, so it is used where a formula needs richness without the waxiness of shea.
macadamia ternifolia seed oil emollient: Macadamia Seed Oil is unusually high in palmitoleic acid, a fatty acid that human sebum also contains, which is why it absorbs faster than most nut oils. It is a cushioning emollient for dry skin.
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.
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.
phytosteryl/octyldodecyl lauroyl glutamate barrier lipid: An ester built from plant sterols, a fatty alcohol and the amino acid glutamic acid. It mimics the lipids between skin cells and helps hold water in.
polysorbate 60 emulsifier: Polysorbate 60 is a water-loving emulsifier used with a fatty co-emulsifier to build stable lotions and creams.
polyacrylate-13 thickener: Polyacrylate-13 is a pre-neutralised thickener that gels instantly and holds an emulsion together, so a formula can be built without heat.
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.
arachidyl alcohol fatty alcohol: Arachidyl Alcohol is a long-chain fatty alcohol used as a thickener and emollient, usually alongside behenyl alcohol.
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.
behenyl alcohol fatty alcohol: Behenyl Alcohol is a long-chain fatty alcohol used to thicken and stabilise a cream. It gives a richer, more velvety body than cetyl alcohol.
carbomer thickener: Carbomer is a synthetic polymer that only gels once a base neutralises it, which is why arginine or tromethamine sits nearby on the list. It gives the clear, non-stringy gel texture a xanthan formula cannot reach.
palmitic acid fatty acid: Palmitic Acid is a saturated fatty acid present in skin's own lipids. It thickens a formula, stabilises the emulsion and softens skin.
sodium polyacrylate thickener: Sodium Polyacrylate is a polymer that absorbs many times its weight in water. It thickens a formula and holds water in a gel against the skin.
c12-16 alcohols fatty alcohol: C12-16 Alcohols is a blend of medium-chain fatty alcohols used to thicken and stabilise an emulsion.
arachidyl glucoside emulsifier: Arachidyl Glucoside is a sugar-derived co-emulsifier, usually supplied with arachidyl and behenyl alcohols as a plant-based cream base.
mica colorant: Mica is a mineral ground into fine flakes. It scatters light, so it lightens a shade and gives the soft glow of a tinted or illuminating product.
tromethamine pH adjuster: Tromethamine neutralises acidic thickeners such as carbomer so they gel, and holds a formula near skin-friendly pH. It is used at a fraction of a percent.
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.
xanthan gum thickener: Xanthan Gum is a polysaccharide made by fermenting sugar. It thickens a watery formula into a gel and holds the whole thing in suspension so nothing separates. Too much of it and a serum turns stringy, which is why it appears in fractions of a percent.
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.
adenosine active: Adenosine is a nucleoside that Korea's own cosmetic authority recognises as a wrinkle-care functional ingredient, which is why it appears on so many Korean lists at a low level. It is used for the look of fine lines and is stable and well tolerated.
polysorbate 20 emulsifier: Polysorbate 20 is a solubiliser: it dissolves small amounts of oil or fragrance into a watery formula so nothing separates or floats.
phenoxyethanol preservative: Phenoxyethanol is the most widely used cosmetic preservative outside the paraben family. It keeps a water-containing formula from growing bacteria and mould, and is capped at one percent in most markets, so it always sits low on a list.
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.
iron oxide red colorant: Iron Oxides are mineral pigments in red, yellow and black, and the three are blended to make every skin-tone shade in a tinted product. They are inert and sit on the surface.
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.
butylphenyl methylpropional fragrance component: A synthetic aroma molecule with a soft floral note, once widely known as Lilial. It is one of the fragrance components EU labelling requires to be named separately.
limonene fragrance component: Limonene is the citrus-peel aromatic. It appears here because EU labelling requires 26 fragrance components to be named individually rather than hidden inside "fragrance", and it is one of them.

How it works

TONYMOLY built this 55ml essence, part of the PREMIUM RX Swallow Nest line around one job: the step after toner, before serum. The format is a fluid lighter than a serum but with more body than a toner, matched to that placement rather than doubling as an earlier or later step. TONYMOLY built its name on approachable, everyday Korean skincare and makeup, sold in Olive Young and its own stores across Korea long before it reached US shelves.

Worth knowing

Let each layer absorb before adding the next, rather than piling on several steps at once.
Introduce any new product gradually rather than adding several new steps to a routine at once, so any reaction is easy to trace back to the right cause.

Complete the routine

This itemTONYMOLY PREMIUM RX Swallow Nest Essence 55ml$27.50
Seal the routine in as the last stepTONYMOLY BIO EX Homme All In One Fluid 130ml$32.50
Cleanse first, so the next step meets bare skinTONYMOLY Intense Care Gold 24k Snail Cleansing Oil Gel 190ml$27.50

Total for 3 items$87.50

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TONYMOLY PREMIUM RX Swallow Nest Essence 55ml

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TONYMOLY, Korean-market original

A 55ml essence from the PREMIUM RX Swallow Nest line, for the step after toner, stocked in the Original Korean Formula.

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