Beyond calming, support your skin’s elasticity.
This is the renewed version of Klairs Midnight Blue Youth Activating Drop. Renewed packaging, same formula, but BIGGER in SIZE of 50ml (from 20ml)!
KLAIRS EGF Blue Youth Activating Drop is a calming, water-like ampoule enriched with EGF, Guaiazulene and Adenosine. Helps to soothe skin irritation caused by various external stressors. It adds radiance and luminosity to the skin to substantially improve the complexion and stimulates the skin to encourage a youthful appearance. It also accelerates the skin’s renewal process, which helps to improve elasticity, appearance of pigmentation and fine lines.
This night serum is highly concentrated with 10 core ingredients without the use of purified water to effectively combat various signs of aging and skin damage, improving overall skin texture and appearance. This is achieved by accelerating the skin’s renewal process, which helps to improve the overall health and condition of the skin, and ultimately helps to achieve youthful-looking skin with radiance and luminosity.
Dual Peptides, EGF (sh-Oligopeptide-1) and bFGF (sh-Polypeptide-1), accelerate skin cell renewal, reduce fine lines and wrinkles, while Blueberry extract, a powerful antioxidant, effectively lightens dark spots. Guaiazulene, a soothing ingredient derived from chamomile that gives the formula its distinctive watery blue appearance and actively works to instantly reduce redness and calm irritated skin, while strengthening the skin barrier.
The EGF Blue Youth Activating Drop is a high-intensity product that delivers a definite transformation experience with high concentrations of EGF and bFGF, regardless of what age you are. The EGF is prescribed to the max level of 10PPM as well as the bFGF (93% of total weight), containing enough for significant effects. Also containing adenosine, a raw material with wrinkle-improving effects, and guaiazulene, which calms the skin stimulated by UV rays, it is designed to combat various causes of aging, suitable to be used by everyone—regardless of age.
Cruelty-free. Vegan friendly. Non-Comedogenic. For Sensitive Skin. Fragrance-Free.
Start now with the EGF Blue Youth Activating Drop!
Q. When can I add this in my skin care routine?
A. We recommend to use this product at the first step of your skincare. It can be used during both morning and night, but we recommend you to apply it as a night care due to the features of the ingredients. *Please note that applying an oil product beforehand can interfere with the absorption.
Q. Color turned to the green/ grey/transparent! Is this okay to use?
A. The color may change due to the ingredient - Guaiazulene. This is a natural phenomenon that appears on pure ingredient, it is safe to use.
Product History:
✨1 Million+ Sold Globally (as of Apr. 2026)✨
✨Available at select Olive Young stores as of late February (50ml)✨
🎖️Awards🎖️
– 2025 Olive Young : Ranked No. 1 Realtime Sales, Skincare, Essence/Serum Product (2025.04.07)
– 2024 Olive Young : Ranked No. 1 Skincare Product (2024.04.07)
– 2024 Soko Glam : Best of K Beauty
– 2023 Musinsa : Beauty Awards, No. 1 Product
– 2020 Guardian Award : Best Newcomer, Derma Night Serum
– 2019 Beauty MNL : The 27 Best Skincare Products of 2019
– 2019 Beauty MNL: Best Beauty Discovery Product
– 2019 Oh! My Venus : Vegan Special Top 1
– 2017 Beauty Shortlist Awards : Editor’s Choice
HOW TO USE
- After cleansing and before using the toner, apply 3-4 drops over the face and gently pat to promote absorption.
Tip! dear, KLAIRS recommends using the serum before the toner because the EGF Blue Youth Activating Drop is a peptide with lighter consistency that absorbs better on bare skin, please note that applying an oil product beforehand can interfere with absorption.
INGREDIENTS
Full list of ingredients: Water, Butylene Glycol, sh-Oligopeptide-1, sh-Polypeptide-1, Vaccinium Angustifolium (Blueberry) Fruit Extract, Lecithin, Sorbitan Sesquioleate, 1,2-Hexanediol, Caprylyl Glycol, PEG-60 Hydrogenated Castor Oil, Glycerin, Chlorphenesin, Guaiazulene, Ethylhexylglycerin, Adenosine
[NOTE: Ingredients are subject to change at manufacturer's discretion. For the most complete and up-to-date list of ingredients, please consult the product packaging or contact us for a photo of the product packaging.]
SPECIFICATIONS
Brand:
|
Klairs |
| Beneficial skin type(s): |
All skin types, suitable for sensitive skin
|
| Skin concern(s): |
Wrinkles, fine lines, and premature aging, skin that lacks elasticity, skin irritated by external(physical) stimulation and/or external(heat), uneven skin texture, pigmentation in troubled areas |
| Volume (g/ml): |
50ml |
CAUTION
- For external use only.
- Use only as directed.
- Avoid contact with eyes. If contact occurs, rinse eyes thoroughly.
- If swallowed, get medical help or contact the Poison Control Center immediately.
- People with an aspirin allergy will react poorly to the betaine salicylate.
- Do not use on wounds, rashes, broken or damaged skin.
- Discontinue use if redness or irritation occurs and consult a physician if needed.
- Protect the product from excess heat or direct sunlight.
- Do not store at high temperatures.
- KEEP OUT OF REACH OF CHILDREN.
