7results about How to "Reduce hyperpigmentation" patented technology

The invention discloses an extracellular vesicle and a preparation method and application thereof, and belongs to the technical field of cosmetics, and the preparation method comprises the following steps: mixing rose and a PBS buffer solution, juicing, and filtering to obtain a filtrate; adding cellulase, xylanase and beta-glucanase into the filtrate, carrying out enzymolysis, and filtering to obtain an enzymatic hydrolysate; and centrifuging the enzymatic hydrolysate, filtering, resuspending and precipitating to obtain the rose extracellular vesicles. The rose extracellular vesicles can guarantee structural integrity and biological activity, can effectively load active ingredients, and can effectively deliver active molecules in the rose extracellular vesicles to target cells through interaction with membranes of skin cells. The extracellular vesicles can be fused with skin cell membranes to enter cells, active ingredients encapsulated by the extracellular vesicles are released, and the absorption efficiency of skin is improved.

The invention discloses a whitening and antibacterial knitted fabric and a preparation method thereof, and belongs to the technical field of functional clothing, Zn (NO3) 2.6 H2O and 1, 4-phthalic acid (H2BDC) are fully dissolved and dispersed through N, N-dimethylformamide (DMF) and dried to prepare Zn-BDC MOF powder, then nicotinamide and chitosan with whitening, spot fading and antibacterial functions pass through N, N-dimethylformamide (DMF) through interaction of subjects and guests, and the functional clothing is obtained. And dissolving N, N-dimethylformamide, and embedding into MOF pores to obtain the whitening skin-care antibacterial functional MOF material. And finally, adding a polyvinyl alcohol solution to obtain a functional finishing agent, and finishing the finishing agent on knitted garments to obtain the knitted fabric with the whitening, skin-care and antibacterial composite functions. The obtained knitted fabric has good whitening, skin care and antibacterial effects and can be applied to sportswear worn in daily life, and knitted garments made of the knitted fabric have the whitening and skin care effects, are good in use comfort and efficiently resist bacteria.

The present invention relates to the technical field of dressings, and discloses an antibacterial dressing containing plant essential oils, wherein the antibacterial dressing containing plant essential oils comprises the following raw materials: atractylodes macrocephala essential oil microcapsules, modified polyglutamic acid, ammonium persulfate, and deionized water; wherein the atractylodes macrocephala essential oil microcapsules are prepared by using guar gum and gelatin as wall materials and atractylodes macrocephala essential oil as core material to form inclusion compounds; and modified polyglutamic acid is prepared by reacting perillyl alcohol with polyglutamic acid. The present invention prepares atractylodes macrocephala essential oil microcapsules and modified polyglutamic acid to participate in the preparation process of the dressing, so that the prepared dressing has excellent antibacterial and anti-inflammatory effects, can effectively promote wound healing, reduce pigmentation and the possibility of scarring, and can play an effective role for a long time without frequent replacement, can effectively avoid secondary injuries, and relieve pain.

The application discloses a whitening composition and a preparation method thereof. The whitening composition comprises undecylenoyl phenylalanine, Galium aparine extract, Terminalia arjuna bark extract, Ascophyllum nodosum extract and Dictyota fasciola extract. The whitening composition has excellent tyrosinase enzyme activity inhibiting effect, is mild and non-irritating, and has a good popularization and application prospect.

The invention discloses a novel skin repairing agent based on a sponge microneedle and PDRN and preparation and application thereof.The novel skin repairing agent comprises the sponge microneedle, the PDRN, hyaluronic acid, collagen, vitamin C. The novel skin repairing agent can be injected into the skin through the sponge microneedle and can repair skin damage, improve skin texture and promote skin cell regeneration, and the skin repairing effect is good. The anti-aging and beautifying effects are achieved. Meanwhile, the skin repairing agent can penetrate into the skin for repairing, the absorption capacity of the skin is improved, and the treatment effect is enhanced. The skin repairing agent disclosed by the invention has multiple beneficial effects, can effectively improve the skin quality and improve the skin health degree, and meets the requirements of people on beauty and health.

The invention provides recombinant humanized collagen as well as an expression system and application thereof, and belongs to the technical field of active raw material development. The problems that in the prior art, an eukaryotic expression system is low in production efficiency, high in cost and insufficient in biological activity are solved, efficient secretion and soluble expression of the IV type collagen recombinant protein are achieved through the prokaryotic host cell, the production efficiency is remarkably improved, the cost is remarkably reduced, the prepared recombinant protein can effectively inhibit tyrosinase activity, and the recombinant protein can be used for preparing the recombinant protein. The composition provided by the invention can promote HSF cell growth, proliferation, differentiation and migration, improves the content of type I collagen, has obvious whitening, repairing and anti-wrinkle effects, and provides a new efficient active component for food, medicine and cosmetic industries.

The present application belongs to the field of daily chemical new materials, and discloses an acne-removing composition, use and acne-removing product, wherein the acne-removing composition comprises the following components by weight: 0.1-10 parts of Panax notoginseng extract; 0.1-10 parts of Phellodendron chinense bark extract; 0.5-15 parts of Sophora flavescens root extract; and 0.1-10 parts of Lotus seed extract. The composition adopts a combination of Panax notoginseng extract, Phellodendron chinense bark extract, Sophora flavescens root extract and Lotus seed extract, and achieves a mild and rapid acne-removing effect.