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Bi-phase Face Serum with 2% Niacinamide, Salicylic Acid and Zinc Gluconate
Kool Beauty 2% Niacinamide Stop Blemish Serum is a bi-phase face serum aimed at blemish-prone skin. The aqueous phase carries niacinamide (Vitamin B3) at 2%, salicylic acid for gentle exfoliation, and zinc gluconate; the oil phase carries Nigella Sativa (black cumin) seed oil and Simmondsia Chinensis (jojoba) seed oil, with bisabolol for soothing. The two phases separate in the bottle and are recombined by shaking before each use.
Why Choose It?
- Niacinamide 2% supports an evener-looking tone and helps manage the shiny look on blemish-prone skin
- Salicylic acid provides gentle exfoliation — helps reduce the look of blackheads and refines skin texture
- Zinc gluconate completes the blemish-care active stack for a mattified finish
- Nigella Sativa (black cumin) and Simmondsia Chinensis (jojoba) seed oils carry the oil phase with bisabolol for soothing
- Bi-phase format: shake to recombine the aqueous and oil phases before each application
Best For
Blemish-prone, combination or oily-leaning skin that wants a niacinamide + salicylic acid + zinc gluconate routine in a single bottle. The bi-phase format means the formula needs to be shaken before each use. Salicylic acid is a leave-on exfoliant, so introduce gradually and pair with daytime SPF.
Use on cleansed skin, morning or evening. After this serum has absorbed, follow with a moisturiser — for a matched routine, layer with a Kool Beauty face cream on top.
- Shake the bottle to recombine the aqueous and oil phases of the bi-phase formula.
- Apply 2–3 drops to clean skin — directly to specific blemishes for targeted use, or spread thinly across the whole face.
- Use after cleansing and toning, before your day or night cream.
- Pat lightly to help absorption rather than rubbing.
- In the morning, always follow with sunscreen — salicylic acid is a leave-on exfoliant.
Tips
- If you are new to salicylic acid, start with once-daily use and build up.
- Avoid contact with the eyes; apply only to clean skin for best results.
- Two to three drops can also be mixed into a moisturiser as a lower-strength introduction.
| Base/Solvent | |||
| Aqua (Water) | |||
| Active Ingredients | |||
| Niacinamide | Salicylic Acid | Simmondsia Chinensis (Jojoba) Seed Oil | Zinc Gluconate |
| Nigella Sativa Seed Oil | Bisabolol | ||
| Emollients/Oils | |||
| Isododecane | Isohexadecane | ||
| Humectants | |||
| Butylene Glycol | |||
| Preservatives | |||
| Alcohol Denat. | Pentylene Glycol | Chlorphenesin | Disodium EDTA |
| Potassium Sorbate | Sodium Benzoate | ||
| pH Adjusters | |||
| Sodium Hydroxide | Citric Acid | ||
| Other | |||
| Centaurea Cyanus Flower Water | Parfum (Fragrance) | ||

