Moisturisers replenish the WATER content of your skin. This is different to OIL content, so greasy skin may still need moisturising. The benefits of moisturising include improving the barrier function of the skin, preventing flaking and reducing irritation from other active products you may be using for e.g acne/anti-ageing.
💎Are there long-term anti-ageing benefits of moisturisers? No
💎Do more expensive moisturisers work better? No.
💎Do I use a moisturiser regularly? No. Only when I feel my skin needs it .
Ingredients used to make moisturisers fall into 3 groups:
🍁 HUMECTANTS - these attract and bind water from the environment and deep layers of the skin. Hyaluronic acid is one of the most commonly used, and attracts 1000x its weight in water. Other humectants include glycerin, hexanediol, and sorbitol. Using a humectant alone can have the reverse effect of drawing water OUT of the skin, so it must be paired with an occlusive agent.
🍁OCCLUSIVES- These form a barrier over skin preventing water loss from the epidermis. The most effective occlusive is petroleum (Vaseline), though this is often unpopular due to its stickiness. Others include dimethicone (a type of silicone), propyl glycol, and shea butter.
🍁 EMOLLIENTS- These soften the skin by filling the gaps between skin cells. They are usually light oily substances, like octyl octanoate, sesame oil, linoleic acid and ceramides
Moisturisers are usually a mixture of the above, with the top 3 ingredients making up the bulk of the product.
As a general rule:
🍭Normal skin does better with moisturisers high in humectants over summer months, and something higher in emollient/occlusives in the winter.
🍭Acne prone skin would benefit from moisturisers high in humectant and low in occlusives. If the skin is acne prone but dry, then higher content of emollients/occlusives may be necessary.
🍭Dry skin benefits from the barrier function of occlusives and lipid content of emollients. A humectant serum can be used first before layering on the moisturiser if skin is very dry.
What are the top 3 in your moisturiser?