Prospects for flaxseed oil as an ingredient of cosmetic products
The thematic review of the works considering flaxseed oil as ingredient of cosmetics is presented. It is noted that various vegetable oils are used in cosmetic products, but one of the most perspective of them is flaxseed oil. However, its use is constrained by high oxidability which is caused by high content of polyunsaturated linoleic acid щ-6 and especially б-linolenic acid щ-3. It is shown that one of the most acceptable ways to reduce oxidability in flaxseed oil is to use a blend of flaxseeds made of those varieties which have low and high content of linolenic acid. In this case it is possible to get the ratio between щ-6 and щ-3 fatty acids which is optimal for vegetable oils used as ingredients on cosmetic products. It was suggested using the technology of pressing the blend of flaxseed oils made of varieties with low and high content of linolenic acid which allows to produce high quality oil with low content of acids. It has been observed that chemical composition, viscosity, surface tension, pourability and sensor characteristics should be taken into consideration when the introduction of flaxseed oil with optimal ratio of щ-6 and щ-3 fatty acids into the formulation of a cosmetic product, as physical-chemical and consumer properties.