
Kojie San Skin Lightening Soap With Hydromoist is a product with 25 ingredients: Cocos Nucifera (Coconut) Oil, Water, Sodium Hydroxide, Lactobacillus Ferment, Avena Sativa (Oat) Kernel Extract, Sodium Benzoate, Potassium Sorbate, Saccharide Isomerate, Citric Acid, Sodium Citrate and 15 more.
Contains: AHA - Citric Acid; Antioxidant - Cocos Nucifera (Coconut) Oil, Avena Sativa (Oat) Kernel Extract, Citric Acid, BHT;
Organic score: 40% natural, 36% chemical. Vegan - No; Cruelty free - No; Reef safe - Yes;
Positive effects
Concerns
INCI - Full Breakdown

Cocos Nucifera (Coconut) Oil protects the skin from dryness. It’s a very effective organic moisturizer. In hair care, it creates a protective film around hair protecting it. It has slight comedogenic activity, meaning the product may clog pores if there is too much Coconut oil in it.
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.
Sodium Hydroxide is used mostly for formulation purposes. It helps to hold the pH level of a product. It also works as a chemical exfoliator that removes dead cells. Usually concentration of this component is low in skin care products and it’s used mostly for adjusting pH.
Sodium Benzoate doesn’t have any great skincare effects and is used for formulation purposes. It’s a corrosion inhibitor, fragrance ingredient, and preservative. It is not a broad-spectrum preservative and it’s used with other preservatives for good efficiency. It’s safe, but people with eczema or a history of skin allergies should use this component with attention.
Potassium Sorbate is a preservative that increases the shelf life of the product. It’s a great alternative to parabens. That's why manufacturers like to use this component. It is safe in concentration of up to 10% but it is used in cosmetics in amounts of 1% or even lower.
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.
Sodium Citrate is a water-soluble soft organic surfactant with strong stabilizing and conditioning effects. It helps to produce foam and lowers the negative impact of hard water on your skin and hair. It also helps to regulate the pH level of the product. It’s a natural ingredient and it’s safe for most people. It’s used in food (additive number E331).
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