According to tretinoinmanufacturer, topical use tretinoin should avoid the fold parts of thethinner skin, and note that the concentration should not be too high (below 0. But vitamin A has many types, how to choose have a littletrouble. Retinol can bebroken down into other forms of vitamin A, appears in skin care products orprescription drugs. Vitamin A acid to various skin diseases suchas China Vitamin A Acetate Factory acne, ichthyosis, pityriasis rubra pilaris, unusual warts have a significanteffect, can be used for the adjuvant treatment of psoriasis drugs.1% cold cream ointment used to treat lichenplanus, pityriasis, vitiligo and other skin diseases. Vitamin A acid is much more effective than retinol, but hasmore possibility to cause skin irritation.02%is appropriate), in order to avoid the reaction of erythema, scaling, burningsensation caused by the skin vascular violent expansion. Whether we should use non-prescription vitamin A skin care products, orbuy vitamin A drugs under the dermatologist’s guidance?Retinol is the intact vitamin A molecule,it is a cosmeticraw material, used only in non-prescription products.Smear oily skin care products can ease the symptoms.

Thepalmitic acid retinyl ester can produce 100 times stronger anti-tumor effect thanthe other pair of the tumor immune response to BCG.025% of the vitamin A acid cold cream ointment used to treat acne,facial rough and other diseases. With the socialdevelopment and the improvement of people's living standards, a variety ofdiseases also showed an upward trend, timely take preventive measures can helpfriends away from the troubles of various diseases, especially the disease likecancer, vitamin A in the prevention of tumor has great help, it also the human’sindispensable vitamin. 0.cosprm. But taking large dosesof vitamin A will lead to toxic reaction. Which means they can command skin cells to work normally,even make skin cells become more dynamic. No matter prescription ornon-prescription, various forms of vitamin A are playing the role of cellcommunication factors. Prescription vitamin A drugs containing an ingredientcalled vitamin A acid.Vitamin A and vitamin A acid have a role onpromoting growth and can maintain normal epithelial, but partially coatedvitamin A actually does not work on the skin, oral administration of vitamin Ais good for skin diseases. Lessthan 0.In addition, vitamin A also has a greathelp on skin.Vitamin A acid is an intermediate productof the metabolism of vitamin A, vitamin A in the formation of alcoholmetabolism into vitamin A aldehyde, then further turn into the vitamin A acid,but vitamin methanol and vitamin A aldehyde can metabolic transform each other,while vitamin A acid can not be restored to vitamin A aldehyde or alcohol.However, some scientists believethat vitamin A compounds can stimulate the immune system against tumor. Therefore, some scientistsbelieve that vitamin A have the cancer preventive effect, this is perhaps oneof the most important discoveries in cancer prevention.

So that scientists recommended thatthe important issue is how to synthesize and screening new vitamin Aderivatives that no toxic effects, to prevent and treat cancer.Vitamin A acid topical applied to the skin has astrong pharmacological properties, the topical vitamin A acid can improve the agingskin due to exposure to the sun. To mild erythema peeling,burning sensation, mild slight pain and other local irritation is a normalreaction in the course of treatment, you should stick with, so that you canachieve better efficacy. Eliminatefine wrinkles, reduce skin roughness, reduce pigmentation, make the skinbecomes rosy. If the reaction is severe, should immediately stop. If the skin damaged by sun, the roleof cell communication factor is huge, because after skin photoaging willproduce rigid, unhealthy, abnormal cells

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