As we age, the essential fatty acid composition in our skin changes and the level of linoleic and palmitic acids decreases. In a younger skin low levels of linoleic acid are also often associated with acne. Supplying the skin with the fatty acids its lacking helps to restore the skin’s healthy sebum composition and make it more resilient to bacteria, dryness and environmental damage.
Mature and dry skin also needs additional cholesterol supply to better repair its natural protective lipid layer. Our skin increases the production of cholesterol when its protective layer is compromised. However, n aged skin where these restorative processes are slowed down and the studies have shown that by adding cholesterol from the outside the process significantly speeds up.
High linoleic and polyunsaturated oils are more prone to oxidation therefore are not recommended to be applied during the day with exposure to ultraviolet light. For best results apply the oil to a clean skin in the afternoon or as an overnight treatment. The oil is fast to absorb and can be paired with serums for additional nutrients delivery or a moisturizer for extra dry skin types.
Oils that are high in linoleic acid are not very stable and are rarely offered by the brands that sell in the retail stores that require at least 30 months shelf life. That is why we offer anti aging oils in the “After Dark” series with the packaging that protects it from the sunlight. Once you start using the oil and it gets exposed to the air and sunlight, its shelf life at a room temperature is about 3 months. You can extend the shelf life of the oil by another 1-2 months if you store it in the refrigerator.