Compound grease, sunscreen cream applying compound grease, and preparation method of sunscreen cream

Abstract

The invention discloses compound grease, sunscreen cream and a preparation method of the sunscreen cream. The compound grease is prepared from the following components by mass percent: 10-30% of sunflower seed oil, 10-30% of peony seed oil, 10-20% of plum-leaf crab seed oil and 30-50% of pongamia glabra seed oil, wherein the sum of the contents of all the components of the compound grease is 100%. Compared with single grease, the ultraviolet absorption effect of the compound grease is remarkably improved. The invention also provides the sunscreen cream applying the compound grease, and the preparation method of the sunscreen cream. The values of sun protect factor (SPF) and PA of the prepared sunscreen cream are greatly improved; the compound grease provided by the invention can be used for replacing a sun-screening agent in the existing sunscreen cream, so that the use amount of the sun-screening agent in the sunscreen cream is reduced, and the irritation of the product is further reduced; furthermore, the components of the compound grease are natural grease, so that the sunscreen cream is harmless to the skin and a human body, and is safe and reliable to use.

Description

technical field [0001] The invention relates to the technical field of skin care products, in particular to a compound oil, a sunscreen using the compound oil and a preparation method thereof. Background technique [0002] Ultraviolet rays in sunlight are divided into short-wave ultraviolet (UVC), medium-wave ultraviolet (UVB) and long-wave ultraviolet (UVA) according to the length of the wavelength. UVC wavelength 200-280nm, almost filtered by the ozone layer. UVB wavelength 280-320nm is the main factor causing skin erythema, sunburn, sunburn and even blisters. UVA has a wavelength of 320-400nm. Due to its longer wavelength, it can directly enter the dermis, accelerate the degradation of skin-level proteins (collagen and elastin), and make the skin lose its elasticity. Cause pigmentation disorders, skin darkening, pigmentation and other skin problems. Proper exposure to sunlight can convert deoxysterols in the skin into vitamin D, which is beneficial to the body's absorp...

AI Technical Summary

Problems solved by technology

However, long-term exposure to ultraviolet radiation can cause skin sunburn, promote premature skin photoaging, damage immune cells in the skin, and cause systemic immune function suppression and other hazards

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