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Topical sun protection composition

A composition, topical technology, applied in the field of sunscreen topical compositions, which can solve the problem of negative impact of UV filters on human health and the environment

Pending Publication Date: 2021-09-10
歌莲化妆品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these two UV filters are controversial due to suspected negative effects on human health and the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] This example illustrates the composition (Table 1 ) and method of making a sun protection topical oil according to the invention. The sunscreen (sunscreen) oil of this Example 1 further contains fragrance and active ingredients. These oils exhibited an SPF of 41 with good stability over time at 4°C, 25°C and 40°C.

[0055] In part B), SPF data for sunscreens have been determined in silico using the BASF sunscreen simulator (https: / / www.sunscreensimulator.basf.com).

[0056] In part C) UV filters were evaluated visually and under polarized microscope (X10 polarized light) in the ester emollient system (oil phase) and in the whole formulation (whole oil phase) at the above different temperatures ) to determine the presence or absence of crystals of organic UV filters. No crystallization or recrystallization was observed.

[0057] In part D), the sunscreen topical oil exhibits high clarity and spreads easily and is not sticky. The sensory properties of the oils have be...

Embodiment 2

[0071] This example illustrates the composition (Table 2) and method of making a sunscreen topical gel according to the invention. These sunscreen gels exhibit an SPF better than 40 and are stable over time at 4°C, 25°C and 40°C without recrystallization of the organic UV filter.

[0072] In part B), SPF data for sunscreen gels have been obtained with the BASF sunscreen (sunscreen) simulator.

[0073] In part C) the UV filter was evaluated visually and by observation under a polarizing microscope (X10 polarized light) at the above different temperatures in the ester emollient system (oil gel) and in the overall formulation ( Solubility in the whole gel). No crystallization or recrystallization was observed.

[0074] In part D), the sun protection topical gel has good clarity and spreads easily. The sensory properties of the gel have been evaluated by an internal panel. 60 [mu]l of each gel was evaluated when applied on the forearm of the panelists (20 times). The scale of...

Embodiment 3

[0090]This example illustrates the composition (Table 3) and method of making a sunscreen topical stick according to the invention. The sunscreen stick of this Example 3 further contains oil thickeners, film formers and fragrances and active ingredients. These solid compositions in stick form exhibit an SPF of 41 to greater than 60 and good stability over time at 4°C, 25°C and 40°C. Stability has been tested simultaneously for the oil phase of the stick and separately for the whole stick.

[0091] In part B), the SPF data for sunscreen sticks have been determined on a computer using the BASF sunscreen (sunscreen) simulator.

[0092] In part C) the SPF data of the sun sticks have been screened in vivo according to the standard method ISO 24444.

[0093] In part D) the UV filter was evaluated visually and under a polarized microscope (X10 polarized light) in the ester emollient system (oil phase) and in the whole formulation (whole stick) at the above different temperatures )...

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PUM

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Abstract

The invention relates to a topical sun protection composition. The topical sun protection composition comprises a UV filter system achieving a Sun Protection Factor of at least 30; at least two ester emollients; wherein the at least two ester emollients comprises dibutyl adipate with a mass that is at least 89.5% of a total mass of the UV filter system and butyloctyl salicylate with a mass that is at least 24% of a total mass of the UV filter system.

Description

technical field [0001] The present invention relates to the field of cosmetics and more particularly to sun protection topical compositions with a high sun protection factor (SPF). Background technique [0002] It is well known that ultraviolet (UV) radiation, especially UVA and UVB, is harmful to human skin and causes different types of skin damage. In fact, UVB radiation (wavelength between 290 and about 320nm) is the cause of sunburn and leads to some skin cancers. Under these radiations, the biomechanical properties of the epidermis undergo long-term deleterious changes, leading to premature aging of the skin. UVA has long been considered less harmful than UVB, and it has been shown that UVA radiation (wavelength between 320nm and 400nm) contributes to sunburn as well as tanning. Furthermore, these UVA radiations are also sufficient under fairly normal everyday conditions to damage over time collagen and elastin fibers, which are important elements of the structure and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/37A61Q17/04
CPCA61K8/375A61K8/37A61Q17/04A61K2800/34A61K2800/30A61K8/411A61K8/4966
Inventor A.努瓦勒
Owner 歌莲化妆品有限公司
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