Dehydroacetic acid (dehydroacetic acid) is a synthetically produced preservative for cosmetic formulations. It protects products from microbial spoilage and contributes to product safety and shelf life(1).

Dicaprylyl carbonate is a skin-conditioning and lipid-replenishing emulsifier that helps to improve the absorption of other ingredients in a cosmetic formula(1).

Diethylamino Hydroxybenzoyl Hexyl Benzoate (DHHB) is a modern chemical UVA filter with an absorption range of 320 to 400 nm. DHHB provides reliable protection against long-wave UVA radiation—a major cause of premature skin aging—and, in combination with effective UVB filters, contributes to SPF performance. DHHB is oil-soluble and ideal for long-lasting sunscreen formulations.

Diethylhexyl butamido triazone, also known as iscotrizinol, is an effective UVB filter that is highly soluble in oils. Due to its high specific extinction and excellent solubility, it is considered to be very efficient. Diethylhexyl Butamido Triazone can be used alone or in combination with one or more UV filters in any cosmetic formulation containing a suitable lipid phase. It can also be used in combination with inorganic UV filters such as zinc oxide and titanium dioxide.

Dimethicone is a synthetically produced silicone oil that is commonly used in cosmetics as a skin-smoothing emollient and anti-foaming agent. (1) In our Daily Defence SPF 30 Powder, dimethicone does not serve as a standalone oil base, but is used exclusively to coat the zinc oxide particles.

Dimethyl isosorbide is a solvent that is used to improve the penetration of active ingredients into the skin due to its high penetration power. This can improve the effectiveness of the various ingredients(1).

Disodium phosphate is a synthetically produced buffering agent that regulates and stabilizes the pH value of cosmetic formulations. At the same time, it can have an anti-corrosive effect. (1-2)

Ectoin is a very special amino acid produced by bacteria that can survive under extreme environmental conditions such as extreme dryness, UV radiation or high salt concentrations. This ability to protect against stress can also be used for the skin.

Firstly, ectoine has an anti-inflammatory and soothing effect on the skin and increases skin resistance. (1-2) Ectoine is also particularly effective at moisturizing the skin by minimizing transepidermal water loss and thus preventing the epidermis from drying out.(2) Ectoin in a skin care cream can improve parameters of skin aging such as skin moisture, skin elasticity, and skin surface structure. (3) In cell studies, ectoin was even able to counteract UVA-induced skin aging at different cell levels. (3-4)