Dry Skin vs. Dehydrated Skin
There are numerous layers of water-based cells that make up our skin. An acidic mix of oily lipids and waxes, mostly sebum and sweat, protects the top layer of skin. Dry or dehydrated skin becomes an issue when the top layer, the stratum corneum, is damaged. How this top layer is left vulnerable is what differentiates dry skin from dehydrated skin.
Dry skin is a skin type. According to the Global Director of Education for Dermalogica, Annet King, “Dry skin is caused by a lack of skin lipids and sebum, due in part to underactive and smaller sebaceous glands.” Less protective oil in the skin cells leaves a tight, scaly and sensitive sensation. A common problem among mature skin, dryness can be caused by an underactive thyroid, a hormone imbalance or untreated dehydrated skin, all of which inhibit the production of the essential oils that protect the skin. Or, it could just be your genetic luck of the draw.
Dehydrated skin is a skin condition, meaning it is temporary and more easily treatable than dry skin. Often caused by external elements, such as weather or harsh soaps, dehydrated skin is simply moisture-deficient skin with low, depleted water content. Alina Roytberg, co-founder of skincare brand Fresh, whose latest skincare launch was formulated to address dehydrated skin, explains, “Dehydrated skin means there is a loss or reduction of bodily fluids. All of the cellular processes that occur in our bodies depend on water. If we don’t have enough water in our body, we starve our skin of moisture, which makes it vulnerable to the outside aggressors.”
Dehydrated skin commonly feels flaky, less supple, taught and itchy and can be caused by over exfoliating, poor diet (i.e. not eating enough water-rich vegetables, or too much caffeine and alcohol intake), stripping cleansers, cold weather, sun exposure and other environmental factors.