Skin care compositions comprising a water-in-oil emulsion base containing retinoids, excluding Vitamin A acid, and at least one imidazole in a free base form and possessing good physical and chemical stability.
The compositions further comprise a stabilizing system selcted from:
a) a chelating agent and at least one oil-soluble antioxidant,
b) a chelating agent and at least one water-soluble antioxidant; and
c) antioxidant present in each of the oil and water phases of said emulsion.
护肤组合物,包含一种油包
水型乳液基质,其中含有
维甲酸(不包括
维生素 A 酸)和至少一种游离基形式的
咪唑,并具有良好的物理和
化学稳定性。
这些组合物还包含一种稳定体系,该稳定体系可从以下物质中选取:
a)
螯合剂和至少一种油溶性
抗氧化剂、
b)
螯合剂和至少一种
水溶性
抗氧化剂;以及
c) 存在于所述乳液的油相和
水相中的
抗氧化剂。