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[Objective] To find new and cheap additives of cosmetics which are non-toxic and cost low. [Method] Cactus extracts were selected as the humectant of cosmetics in order to take the place of traditional hyaluronic acid. Formula system with 0.02% hyaluronic acid and that with different proportions of cactus extracts (0.15%, 0.30%, 0.45%) were designed. Biochemical measurement and human trial were carried out in order to verify the moisture retaining abilities of cactus extracts. [Result] Adding 0.15% cactus extracts had better moisture retaining effects than the control (adding 0.02% hyaluronic acid); adding 0.15%-0.45% cactus extracts showed no significant increasing effects of moisture retaining, and there were no statistical significance. [Conclusion] The market price of hyaluronic acid was 36-60 times higher than that of cactus extracts, but the moisture retaining ability of cactus extracts was superior. Besides, the dosage of cactus extracts was small in cosmetics, which could be easily accepted by the consumer. Therefore, cactus extracts could be applied in cosmetics as a humectant.
[Objective] To find new and cheap additives of cosmetics which are non-toxic and cost low. [Method] Cactus extracts were selected as the humectant of cosmetics in order to take the place of traditional hyaluronic acid. Formula system with 0.02% hyaluronic acid and that with different proportions of cactus extracts (0.15%, 0.30%, 0.45%) were designed. Biochemical measurement and human trial were carried out in order to verify the moisture retaining abilities of cactus extracts. [Result] Adding 0.15% cactus extracts had better moisture retaining effects than the control (adding 0.02% hyaluronic acid); adding 0.15% -0.45% cactus extracts showed no significant increasing effects of moisture retaining, and there were no statistical significance. [Conclusion] The market price of hyaluronic acid was 36 -60 times higher than that of cactus extracts, but the moisture retaining ability of cactus extracts was superior. Besides, the dosage of cactus extracts was small in cosmetics, which could be ea sily accepted by the consumer. Therefore, cactus extracts could be applied in cosmetics as a humectant.