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COSRX Advanced Snail Radiance Dual Essence is a brightening facial essence that combines snail mucin with niacinamide. It is designed to help improve the look of dull, uneven skin while keeping it hydrated and smooth.
The dual-chamber pump keeps two essences separate until you apply, helping keep the formula fresh. Snail secretion filtrate helps support the skin’s barrier and gives a plump, dewy look. Niacinamide and other brightening ingredients help the appearance of dark spots and uneven tone. The light, silky texture absorbs quickly and layers well with other skincare. Suitable for daily use, this essence aims to leave skin looking soft, glowy, and more even over time.
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Directions
How To Use COSRX Advanced Snail Radiance Dual Essence
Use on clean, dry face after toner.
Pump an even amount from both sides onto fingertips.
Gently spread over face, avoiding the eye area.
Pat lightly until absorbed, then follow with moisturiser.
Use morning and/or night, and apply sunscreen in the day.
Provides lightweight hydration and conditioning to help improve softness and manageability.
May suit
Those looking to boost moisture, smoothness or overall hair feel.
Worth knowing
It is valued for its naturally occurring humectant and skin-conditioning compounds, which can also benefit the scalp. Its use is primarily for enhancing hydration and suppleness rather than styling performance.
Butylene GlycolHumectants
Humectant and solvent
Butylene Glycol helps attract and hold moisture while improving the spreadability of hair products.
May suit
Those looking for hydrated, smoother-feeling hair or lighter-feeling formulations.
Worth knowing
It is commonly used to help ingredients dissolve and to give formulas a soft, glide-on texture. It appears in many leave-in and rinse-off products due to its versatility.
NiacinamideAnti-dandruff / scalp care
Scalp-supporting vitamin
Niacinamide is a form of vitamin B3 that helps support a balanced scalp environment and improve hair resilience.
May suit
Those looking to support scalp comfort, strengthen hair, or maintain a healthy-looking scalp barrier.
Worth knowing
It is commonly used in both skincare and haircare for its soothing and barrier-supporting properties. It pairs well with many other ingredients and is generally well tolerated.
2-HexanediolSolvents
Solvent and humectant
Helps dissolve other ingredients and provides light moisture to haircare formulas.
May suit
Those interested in lightweight, non-greasy formulas that spread easily.
Worth knowing
It is also used as a preservative booster to support formula stability.
BetaineConditioning agents
Conditioning agent
Helps condition and hydrate hair by supporting moisture balance.
May suit
Those looking for softer, smoother-feeling hair or gentle hydration.
Worth knowing
Betaine is a naturally occurring molecule often used to improve hair feel and support moisture retention. It can also help enhance the overall mildness of cleansing formulas.
PanthenolConditioning agents
Conditioning agent
Helps condition, soften and add a smooth, healthy feel to the hair.
May suit
Most hair types, especially dry or dull hair.
Worth knowing
A versatile, well-tolerated conditioning ingredient.
AquaSolvents
Solvent
The water base that carries and dissolves the other ingredients in most products.
May suit
All hair and skin types.
Worth knowing
Almost always the first ingredient listed in water-based products.
GlycerinHumectants
Humectant
Attracts and holds water to help hair feel hydrated and soft.
May suit
Dry or dehydrated hair, and many curl and moisture routines.
Worth knowing
A very common, well-tolerated humectant used across countless products.
Limnanthes Alba Seed OilOils and butters
Nourishing plant oil
A lightweight plant oil that helps soften and smooth the hair.
May suit
Those looking to boost shine, reduce frizz, or add light nourishment without heaviness.
Worth knowing
It is prized for its stability and ability to add a soft, conditioned feel to hair without a greasy finish.
Helianthus Annuus (Sunflower) Seed OilOils and butters
Emollient oil
A plant-derived oil that helps soften and condition the hair and scalp.
May suit
Those seeking lightweight natural oils for moisture, shine or scalp comfort.
Worth knowing
It is rich in fatty acids that support hair softness without feeling overly heavy. Often used as a carrier oil in both rinse-off and leave-in formulas.
AllantoinConditioning agents
Scalp‑soothing conditioner
Allantoin helps soothe the scalp and condition the hair and skin.
May suit
Those with a sensitive or easily irritated scalp may appreciate its calming effect.
Worth knowing
It is widely used in personal care for its comforting feel and compatibility with many formulas. In haircare, it supports a smoother, more comfortable scalp experience.
CarbomerThickeners and stabilisers
Thickener and stabiliser
Carbomer helps thicken and stabilise gels, creams and styling formulas.
May suit
Anyone who prefers smooth, consistent textures in styling or leave-in products.
Worth knowing
It helps formulas stay evenly mixed and glide easily through the hair or onto the scalp. It is widely used because it works in very small amounts and provides reliable texture.
Macadamia Ternifolia Seed OilOils and butters
Nourishing plant oil
A lightweight natural oil that helps condition and soften the hair.
May suit
Those looking to add smoothness, shine or moisture to dry or coarse hair.
Worth knowing
It is rich in fatty acids that can help improve hair feel without leaving a heavy residue. Often used in both rinse-off and leave-in formulas.
Sodium PolyacrylateThickeners and stabilisers
Thickener and stabiliser
A synthetic polymer used to thicken, stabilise and improve the texture of haircare formulations.
May suit
Those who prefer products with a smoother, more consistent texture or enhanced spreadability.
Worth knowing
It helps formulas stay uniform and can also provide light film-forming benefits that support styling performance.
Sodium HyaluronateHumectants
Hydrating humectant
Draws moisture into the hair and helps maintain hydration.
May suit
Those with dry, dehydrated or coarse hair seeking added softness and moisture retention.
Worth knowing
It is the salt form of hyaluronic acid and is widely used because it can hold many times its weight in water. In haircare, it helps support smoother, more manageable strands without adding heaviness.
ArginineProteins and amino acids
Amino acid
An amino acid used to support hair strength and maintain moisture balance.
May suit
Those looking for formulas that help with hair resilience or hydration.
Worth knowing
Arginine is naturally present in the hair’s keratin structure and is commonly added to strengthening or repairing products. It is also used in some formulations to help support scalp comfort.
Argania Spinosa Kernel OilOils and butters
Conditioning oil
Softens and nourishes the hair, adding slip and a conditioned, glossy feel.
May suit
Dry, dull or frizz-prone hair.
Worth knowing
A popular conditioning oil used across many treatment and shine products.
Xanthan GumThickeners and stabilisers
Thickener and stabiliser
Xanthan Gum helps thicken and stabilise haircare formulas for a smooth, consistent texture.
May suit
People who prefer products with a richer or more gel-like texture.
Worth knowing
It is a polysaccharide widely used in cosmetics to keep formulas uniform and easy to apply. It works well alongside many other common ingredients.
EthylhexylglycerinPreservatives
Preservative booster
Helps support the preservation system and can provide mild skin-conditioning benefits.
May suit
Those interested in gentle preservation systems or sensitive scalps may find it relevant.
Worth knowing
It is often paired with other preservatives to improve their effectiveness while allowing for lower usage levels. It also has light moisturising and conditioning properties.
GlutathioneProteins and amino acids
Antioxidant
Acts as an antioxidant that helps support the stability and appearance of haircare formulations.
May suit
People interested in antioxidant-rich or protective hair treatments.
Worth knowing
Glutathione is a tripeptide naturally present in the body and is used in cosmetics for its supportive antioxidant properties. In haircare, it is typically included in small amounts to help maintain formula quality.
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Questions and Answers
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