
Neostrata Skin Active Antioxidant Defense Serum is a product with 36 ingredients: Water, Butylene Glycol, Alcohol Denatured, Maltobionic Acid, Gluconolactone, Polysorbate 80, Dimethicone PEG-7 Phosphate, Citric Acid, Tocopheryl Acetate, Tetrahexyldecyl Ascorbate and 26 more.
Contains: AHA - Citric Acid; PHA - Gluconolactone; Vitamins - Tocopheryl Acetate; Antioxidant - Gluconolactone, Citric Acid, Tocopheryl Acetate, Tetrahexyldecyl Ascorbate, Camellia Sinensis (Green Tea) Leaf Extract, Coffea Arabica (Arabian Coffee) Seed Extract, Pyrus Malus (Apple) Fruit Extract, Eugenia Caryophyllus (Clove) Flower Extract;
Organic score: 39% natural, 44% chemical. Vegan - No; Cruelty free - No; Reef safe - Yes;
Positive effects
Concerns
INCI - Full Breakdown
Water is a great solvent. It’s neutral and doesn’t provide any strong positive or negative effects. It just helps components to mix better and to transport active components.

Butylene Glycol is a very popular synthetic alcohol. It helps the product to absorb deeper and faster. It is also a solvent for other ingredients. As for the skin benefits, it helps to attract water and helps to make the skin softer.

Alcohol Denatured is a great bacteria killer. Manufacturers often put it inside products to increase their shelf life.
Gluconolactone belongs to poly hydroxy acids (PHA). It’s very similar to AHAs chemically, that’s why it is usually presented as a «Next Generation AHA». It has all the benefits of AHA but it doesn’t irritate the skin. It’s a strong natural antioxidant which is as strong as Tocopherol or Ascorbic Acid.
Polysorbate 80 is a formulation component. It helps the components to mix better and makes the product feel smooth on the skin.
Citric Acid is one of the AHAs and it is a super useful component! It’s a great antioxidant. It acts as a soft peeling that removes dead cells and kills bacteria. It becomes even more effective if used with other cosmetic acids. Combined formulations are more active, but can irritate sensitive skin if used too often. The component can also whiten the skin and remove dark areas.
It can be an irritator due to its naturally lower pH level of 2.2. But manufacturers also use it as a pH adjuster so in most cases you will not have any issues.
Tocopheryl Acetate is a form of Vitamine E. It’s used as an alternative to Tocopherol because it is more stable in the formulation. It has all the positive effects of Tocopherol plus better stability. It’s a brilliant component. It conditions and nourishes the skin helping it to resist aging. It also helps to protect the skin from the sun. High concentrations of Tocopheryl Acetate can lead to irritation and allergic reactions.
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