Aqua, also known as water, is a common ingredient in cosmetics and can compose up to 95% of a cosmetic product. It is an excellent solvent and can be combined with thick ingredients like oils and butters to form lotions and creams. Aqua enhances spreadability and forms a barrier on the skin, allowing easy and enjoyable application. Aqua is also used in shampoos and other hair care products as a solvent.

Positive aspects of Aqua in cosmetics include its ability to hydrate and moisturize the skin, and its compatibility with a wide range of other ingredients. Aqua is also a natural and safe ingredient that is readily available.

Negative aspects of Aqua in cosmetics include the potential for contamination if not properly purified, and the fact that it can dilute other active ingredients in a product.

Other ingredients or materials that may be found in cosmetics alongside Aqua include:

• Siltech® CE-2000: an organic mineral dispersant that is combined with the emulsifier Silube® Sustain-S to provide excellent synergistic mineral dispersing effects and easily incorporate the featured TiO2.

• Zinc oxide and TiO2: utilized as sunscreen actives, helping to ensure reef-safety while protecting the skin.

• Siltech® CA Plus: improves the dispersion of the actives and imparts a lightweight, soft sensorial on the skin. It is super hydrophobic and ideal for repelling water in sunscreens.

• Silmer® Q25: a silicone Q resin that promotes film formation and stay-in-place properties.

• Silmer® G-162-F5: a silicone elastomer gel dispersed in Dimethicone that provides a premium sensorial and a long playtime on the skin.

• Silube® Sustain 4316: an improved sustainability alkyl functional silicone polyether that acts as an invert emulsifier.