CF Nest 97% B Jo Serum 50ml

Not on the ingredient list below: denatured or SD alcohol, essential oils, silicones, parabens, sulfate surfactants, mineral oil or petrolatum and added color.

Full INCI (10): Swiftlet Nest Extract (97%), Niacinamide, Propylene Glycol, 1,2-Hexanediol, PEG-60 Hydrogenated Castor Oil, Adenosine, Allantoin, Carbomer, Algin, Fragrance

Ingredient list read from inkeedecoder.com on 10 September 2026.

10 of 10 explained

Swiftlet Nest Extract (97%) 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.

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.

Propylene Glycol humectant

Propylene Glycol is a small glycol used as a humectant and solvent. It hydrates and helps actives dissolve; newer formulas often swap it for propanediol, which does the same job with a lighter feel.

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.

PEG-60 Hydrogenated Castor Oil emulsifier

PEG-60 Hydrogenated Castor Oil is a castor-oil-derived solubiliser. It is what keeps fragrance and oil-soluble ingredients dissolved in a watery formula so it stays clear.

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.

Allantoin active

Allantoin is a comfrey-derived compound used to condition skin and soften the outer layer so it feels smoother. It is one of the standard additions to a formula built for easily irritated skin.

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.

Algin thickener

Algin is a brown-seaweed polysaccharide. It thickens, forms a film, and sets into a rubbery gel when calcium is added, which is how a peel-off modelling mask works.

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.

Market

Korean market, the version sold in Korea

EAN (barcode)

8809418750673

Made in

Republic of Korea

Volume

50 ml

Category

Serum & Ampoule

Actives

Adenosine, Allantoin, Niacinamide

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.

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.