Nanocellulose due to its special properties, such as high wetness (water content
95%), high purity, and mechanical stability, finds applications in the cosmetics as a
moistening mask, as well as an ingredient of moistening cream. For instance, two
cosmetic tissue products are successful on the market: a series of masks based on
BioCellulose and the mask basis material NanoMasque®. Both tissues are produced
from pure bacterial cellulose and alternatively impregnated with active substances
applied in cosmetics such as plant extracts, extracts from algae, essential oils, and
panthenol. The additives are bound inside the cellulose matrix, e.g., by hydrogen
bonds. These bonds are selective enough to localize the substances in the matrix as
well as to allow their migration into the skin during application (Fig. 21.21).
Several randomized studies with humans have been realized: a human patch test
for 72 h and a repetitive epicutaneous test for 6 weeks, as well as tests on the
influence of nanocellulose on the moistness of the skin after short-term treatment
(20 min, measuring of moistness up to 12 h after treatment). The results demonstrate
that the applied nanocellulose will not cause any unwanted skin reactions due to irritating, sensitizing, or early allergic effects and the moistness of the treated skin was significantly higher than in untreated areas proving the safe and prevalent application of these nanocellulose in the field of cosmetic treatment.
Nanocellulose due to its special properties, such as high wetness (water content
95%), high purity, and mechanical stability, finds applications in the cosmetics as a
moistening mask, as well as an ingredient of moistening cream. For instance, two
cosmetic tissue products are successful on the market: a series of masks based on
BioCellulose and the mask basis material NanoMasque®. Both tissues are produced
from pure bacterial cellulose and alternatively impregnated with active substances
applied in cosmetics such as plant extracts, extracts from algae, essential oils, and
panthenol. The additives are bound inside the cellulose matrix, e.g., by hydrogen
bonds. These bonds are selective enough to localize the substances in the matrix as
well as to allow their migration into the skin during application (Fig. 21.21).
Several randomized studies with humans have been realized: a human patch test
for 72 h and a repetitive epicutaneous test for 6 weeks, as well as tests on the
influence of nanocellulose on the moistness of the skin after short-term treatment
(20 min, measuring of moistness up to 12 h after treatment). The results demonstrate
that the applied nanocellulose will not cause any unwanted skin reactions due to irritating, sensitizing, or early allergic effects and the moistness of the treated skin was significantly higher than in untreated areas proving the safe and prevalent application of these nanocellulose in the field of cosmetic treatment.
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