Ingredient

Water (Aqua/Eau)

Neutral in 6

What is Water (Aqua/Eau)?

Water, also known on labels as Aqua or Eau, is the most common and essential component in many products ranging from food and beverages to cosmetics. It is a natural solvent and usually sourced from municipal supplies or purified to remove impurities.

In products, water is primarily used as a solvent or carrier, helping dissolve other ingredients or dilute them to desired concentrations. There are no health concerns associated directly with water as an ingredient; it is essential for life and health. However, the purity and source can affect quality.

On labels, water is straightforward and indicates the hydration or solubility factor of the product. Some consumers may be interested in the source of the water if sourcing practices are important to them.

Commonly found in: makeup, water_filter, foods, home_essentials

Benefits

  • Vital for hydration and supports various biological functions in the body.
FDA

Water is considered Generally Recognized As Safe (GRAS) for use in food and cosmetics.

Research

Research consistently supports the safety and necessity of water in human health and product formulations.

Vegan

Water is a natural, non-animal ingredient and is universally accepted in vegan products.

Sources: Water as an ingredient

Scout's take

Water is a universal solvent and is used as a base in many cosmetic formulations. It helps dissolve other ingredients and provides a medium for them to function. It does not have any direct benefits or risks.

The case against

There are no significant risks associated with water in cosmetic formulations.

from the analysis of Innersense Organic Beauty - Natural Pure Harmony Hairbath Shampoo · echoed in 3 other analyses

The case for

Water hydrates and helps distribute other ingredients evenly across the hair and scalp.

from the analysis of Innersense Organic Beauty - Natural Pure Harmony Hairbath Shampoo

Water hydrates the skin and helps in the application of other beneficial ingredients.

from the analysis of OSEA Undaria Algae Body Wash - Travel Size - Ulta Beauty

Water helps in the application and absorption of other ingredients in the product.

from the analysis of Honest Beauty Gentle Gel Cleanser with Chamomile and Calendula

Acts as a base for the formulation, aiding in the delivery of active ingredients.

from the analysis of The Honest Company Sensitive Face + Body Lotion Fragrance Free

It hydrates the skin and acts as a solvent for other ingredients.

from the analysis of The INKEY List Glycolic Acid Exfoliating Body Stick, Size:, None

More from Scout's analyses

Water is a common solvent used in cosmetics to dissolve other ingredients. It helps in forming emulsions and is essential for hydration. It does not have any direct benefits or risks.

from the analysis of The Honest Company Face+Body Lotion-Lavender Drea

Water is a universal solvent used as a base in many cosmetic formulations. It helps to dissolve other ingredients and provides hydration to the skin. It is essential for the formulation of most skincare products.

from the analysis of The INKEY List Glycolic Acid Exfoliating Body Stick, Size:, None

Found in 6 products

Scan any product to see every ingredient explained — and healthier swaps.

Download on theApp Store GET IT ONGoogle Play