摘要:
Cosmetic or pharmaceutical compositions comprising compounds of formula (I) and the corresponding salts thereof: wherein: —R1 is a radical chosen from —COOR′, —CONR′R″, —CH2OR′, —COR′, —CH2R′, —SO2OR′, —PO3R′R″ and —NHR′, wherein R′ and R″, which may be identical or different, are defined herein; —R2 is chosen from saturated and unsaturated, linear, branched and cyclic hydrocarbon radicals comprising from 1 to 18 carbon atoms which are optionally substituted by from 1 to 5 identical or different entities chosen from —OR′″, —OCOR′″, —SR′″, —SCOR′″, NR′″R″″, —NHCOR′″, halogen, —CN, —COOR′″ and —COR′″, wherein R′″ and R″″, which may be identical or different, are defined herein; as well as the use of these compounds, for example, to promote skin desquamation, to stimulate epidermal renewal and/or to combat the signs of skin ageing.
摘要翻译:包含式(I)化合物及其相应盐的化妆品或药物组合物:其中:-R1是选自-COOR',-CONR'R“,-CHOOR', - COR', - CH 2 R', - SO 2 OR ',-PO 3 R'R“和-NHR',其中R'和R”可以相同或不同,在本文中定义; -R2选自包含1至18个碳原子的饱和和不饱和,直链,支链和环状烃基,其任选被1至5个相同或不同的选自-OR',-OCOR'“,-SR '“,-SCOR'”,NR“R”“,-NHCOR'”,卤素,-CN,-COOR'和-COR'“,其中R'”和R“”可以相同或不同 ,在本文中定义; 以及这些化合物的使用,例如,促进皮肤脱屑,刺激表皮更新和/或抵抗皮肤老化的迹象。
摘要:
The present invention relates to a method of observing biological tissue, the method comprising: collecting through a first end of a bundle of optical fibers light from a surface of the tissue; observing at least one image of the tissue at a second end of the bundle, while injecting light into the second end of the bundle to illuminate the surface of the tissue.
摘要:
The invention relates to a method of acquiring an image of a non-dermatoglyphic zone of the skin or the hair by means of acquisition apparatus comprising a non-optical sensor.
摘要:
Topically applicable sunscreen/cosmetic compositions well suited for enhanced photoprotection of human skin and/or hair against the damaging effects of UV-A and UV-B irradiation, whether before, during and/or after exposure to such UV irradiation, particularly solar radiation, comprise a photoprotecting effective amount of (i) at least one antioxidant, for example tocopherol or derivative thereof, and (ii) at least one extract of at least one nonphotosynthetic and nonfructifying filamentous bacteria, for example of the order Beggiatoales, in a cosmetically acceptable vehicle, diluent or carrier therefor.
摘要:
A composition for topical application to the skin comprises, in an appropriate cosmetic vehicle, as an active agent, a compound of the formula ##STR1## wherein, R.sub.1 and R.sub.2 represent hydrogen or lower alkyl; R.sub.3 represents hydrogen, alkyl containing 1-4 carbon atoms, mono- or polyhydroxyalkyl having 2-16 carbon atoms, carbamylalkyl, carboxyalkyl or alkoxycarbonylalkyl; R.sub.4 represents hydrogen or --COOR.sub.5 represents hydrogen, alkyl having 1-18 carbon atoms optionally interrupted by one or more hetero atoms, or mono- or polyhydroxyalkyl having 2-18 carbon atoms; and n is 0 or 1.This composition improves the elasticity and suppleness of the skin.
摘要:
Method and apparatus to measure the quantity of sebum secreted by the skin, by passing light through the specimen. The light passed through the specimen is modulated at a predetermined frequency, and only light of the same modulated frequency is measured by a receiver. The apparatus includes automatic zero calibration, and several embodiments of stabilized phototransistor circuits.
摘要:
Young's modulus and/or the internal damping factor of an elastic material is obtained by subjecting an area of the material to a sustained vibration. The presence of the material being tested changes the resonance of a mechanical resonator and determination of the changed resonance peak enables the required elastic characteristics to be obtained. The sample may be subjected to varying tension during testing and can conveniently be vibrated by signals obtained from a variable frequency generator although, preferably, an electronic circuit for vibrating the resonator has a feed-back loop to operate as an electro-mechanical auto-oscillator.
摘要:
The invention relates to a method of generating at least one synthesized image of at least a portion of a head of hair in movement, the method comprising the steps consisting in calculating a shape of at least one director hair by applying to the at least one director hair at least one mechanical model of an inextensible rod having inertia and stiffnesses in twisting and in bending, and in generating at least one virtual image of the at least one portion of the head of hair from the shape of the director hair.
摘要:
Cosmetic or pharmaceutical compositions comprising compounds of formula (I) and the corresponding salts thereof: wherein: R1 is a radical chosen from —COOR′, —CONR′R″, —CH2OR′, —COR′, —CH2R′, —SO2OR′, —PO3R′R″ and —NHR′, wherein R′ and R″, which may be identical or different, are defined herein; R2 is chosen from saturated and unsaturated, linear, branched and cyclic hydrocarbon radicals comprising from 1 to 18 carbon atoms which are optionally substituted by from 1 to 5 identical or different entities chosen from —OR′″, —OCOR′″, —SR′″, —SCOR′″, NR′″R″″, —NHCOR′″, halogen, —CN, —COOR′″ and —COR′″, wherein R′″ and R″″, which may be identical or different, are defined herein, as well as the use of these compounds, for example, to promote skin desquamation, to stimulate epidermal renewal and/or to combat the signs of skin ageing.
摘要:
The invention relates to a method of generating a synthesized image of a hair, comprising the following steps: calculating the shape of the hair by applying a behavioral relationship determining the shape of the hair as a function of a physical parameter linked to a mechanical property of the hair, in particular the linear density; producing an image of the hair of shape that has been calculated in this way. The behavioral relationship may be given by the minimization of the following function: E = K L ∫ 0 1 [ 1 2 ( k ~ ( s ~ ) - α ) 2 + 1 β z ~ ( s ~ ) ] ⅆ s ~ , where α=Lk0 and β=K/gμL3, and where L designates the length of the hair, k0 its spontaneous curvature, K its bending moment, μ its linear density and g the acceleration due to gravity, {tilde over (s)} the curvilinear abscissa relative to the length of the hair, {tilde over (k)} its local curvature relative to its length and {tilde over (z)} its height relative to its length.