Dry skin on the body is a prevalent concern, and traditional methods of relief, such as applying leave-on lotions, are not always seen as convenient. This has led to the development and increasing popularity of moisturising body washes, which aim to cleanse the skin while simultaneously delivering moisturising benefits during the wash-and-rinse process. These products represent an evolution in personal cleansing, offering the potential for improved skin condition, particularly for individuals with dry skin and conditions like atopic dermatitis.
The primary challenge in formulating a moisturising body wash is to deposit an effective amount of a beneficial agent onto the skin during the brief contact time of washing and rinsing. Unlike leave-on moisturisers that remain on the skin for extended periods, body washes must be designed to leave behind a sufficient layer of moisturising ingredients after being rinsed away. This requires careful formulation using technologies that facilitate the deposition and retention of beneficial agents on the skin surface.
Moisturising body washes typically employ various mechanisms to achieve their hydrating effects.
Incorporation of occlusive agents: Ingredients like petrolatum and mineral oil can be included in the formulation. These substances form a hydrophobic film on the skin, helping to reduce transepidermal water loss even after rinsing.
Use of emollients: Oils, butters, and fatty acid esters can help to soften and smooth the skin, filling in the gaps between skin cells and improving barrier function. These may be deposited onto the skin during washing.
Inclusion of humectants: Ingredients like glycerin attract and bind water to the skin’s surface, providing hydration. While some humectants may rinse away, others can be formulated to adhere to the skin.
Polymer deposition technology: Some advanced formulations utilise polymers that deposit a thin, moisturising film on the skin as the product is rinsed off. This film can help to retain moisture and improve skin feel.
Oil-in-water (O/W) or water-in-oil (W/O) emulsion systems: The structure of the body wash itself, being an emulsion, can contribute to its moisturising properties by leaving a layer of oil or a hydrated film on the skin after rinsing.
For individuals with dry skin, moisturising body washes offer a convenient way to address their needs during their regular cleansing routine. By delivering some level of hydration while cleansing, they can help to alleviate dryness, improve skin texture, and reduce the need for frequent application of leave-on moisturisers, although these may still be necessary for very dry skin.
The benefits of moisturising body washes are particularly significant for individuals with atopic dermatitis (eczema). This chronic skin condition is characterised by a compromised skin barrier, leading to dryness, itching, and inflammation. Gentle cleansing and consistent moisturisation are cornerstones of eczema management. Harsh soaps can exacerbate eczema symptoms by further disrupting the skin barrier. Moisturising body washes that are mild and contain barrier-supporting ingredients can cleanse the skin without causing significant dryness or irritation and can contribute to overall skin hydration, potentially reducing the severity and frequency of flares. Look for formulations that are fragrance-free and specifically designed for sensitive or eczema-prone skin.
Clinical studies have shown that some moisturising body washes can be effective in improving skin hydration and reducing dryness in individuals with dry skin and even mild xerotic eczema. However, it is important to recognise that the efficacy of different moisturising body washes can vary widely depending on their formulation and the amount of beneficial agents they deposit onto the skin. In conclusion, the development of moisturising body washes represents a significant advancement in personal cleansing, offering a convenient way to address dry skin and support skin health during the washing process. For individuals with dry skin and conditions like atopic dermatitis, these products can provide a valuable addition to their skincare regimen by offering gentle cleansing and delivering hydrating and barrier-supporting benefits. However, careful product selection is essential to ensure that the body wash is truly moisturising and suitable for the individual’s specific skin needs.