C STIM 30% Bioavailable Vitamin C Concentrate

C STIM 30% Bioavailable Vitamin C Concentrate is BioNike’s 30 ml facial serum with stabilised vitamin C. The formula uses 3-O-ethyl ascorbic acid. BioNike describes this concentrate as an antioxidant step for skin exposed to environmental stress, including UV radiation and pollution. Its stated purpose is to help protect against oxidative damage, support collagen and elastin synthesis, improve skin texture, and leave the complexion looking smoother, more even and more radiant.

The concentrated format fits a targeted routine for dull or marked skin. BioNike recommends applying four to five drops to cleansed face and neck in the morning and evening. Avoid the eye area, massage gently and allow a few minutes for absorption. Follow with the recommended Cosmeceutical cream. Avoid use on hypersensitive or fragile skin. Store in a cool, dry place away from light and heat. This is a cosmetic serum and does not replace sun protection or advice from a healthcare professional.

C STIM 30% formula and ingredients

The full ingredient list published by BioNike is: Aqua (Water), 3-O-Ethyl Ascorbic Acid, Pentylene Glycol, Betaine, Hydroxyacetophenone, Caprylyl Glycol, Sodium Hydroxide, and Trisodium Ethylenediamine Disuccinate. Halsa lists the formula as fragrance-free, preservative-free, gluten-free and nickel tested. Review the package for the current ingredient list before use, since manufacturers may update formulas.

This listing is for the 30 ml C STIM concentrate, priced at 10,400 Lek. It is the vitamin C serum step in the BioNike Cosmeceutical routine. Explore other products in our BioNike collection to pair C STIM with a cleanser and moisturiser suited to your routine. For official product information, see BioNike’s product page.

Frequently asked questions about C STIM

How do I apply C STIM? Apply four to five drops morning and evening to clean face and neck, avoiding the eye area. Let it absorb before applying cream.

What is the bottle size? This listing is for the 30 ml format.

Who should avoid using C STIM? BioNike advises avoiding use on hypersensitive or fragile skin.