US 20100183528A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2010/0183528A1 Maloney et al. (43) Pub. Date: Jul. 22, 2010 (54) ACNETREATMENT POWDER FOUNDATION Publication Classification (75)75) invenorInventors: Johnobtainstity. D. Malonev, Salisburv. NC (51) A61KInt. Cl. 8/368 (2006.01) Davidson NC (US) s A61O 1704 (2006.01) s A61O I/00 (2006.01) Correspondence Address: A6IP 7/10 (2006.01) INTELLECTUAL PROPERTY f TECHNOLOGY LAW (52) U.S. Cl. .......................................................... 424/60 PO BOX 14329 RESEARCH TRIANGLE PARK, NC 27709 (US) (57) ABSTRACT (73) Assignee: HARMONY LABORATORIES, Dry powder foundation formulations that include a sustained INC., Kannapolis, NC (US) release salicylic acid composition, an effective, buffering amount of one or more Salicylate ions, and one or more of Zinc (21) Appl. No.: 12/639,851 and titanium oxides, and pigments or colorants, are disclosed. 1-1. The formulations provide both acne treatment and preven (22) Filed: Dec. 16, 2009 tion, and Sunblock protection. The formulation can also O O include other Sunblocking or Sunscreen agents to prevent Related U.S. Application Data photoaging and Sunburn, such as avobenzone, and 3-ben (60) Provisional application No. 61/138.436, filed on Dec. Zophenone, and other cosmetically-acceptable active agents 17, 2008. and excipients. US 2010/0183528 A1 Jul. 22, 2010 ACNE TREATMENT POWDER FOUNDATION used as a foundation that provides both acne treatment and prevention and Sunblock protection. CROSS-REFERENCE TO RELATED 0007 Because the composition provides salicylic acid in APPLICATION the form of a Sustained-release composition, the salicylic acid remains effective for an extended period of time. Poly Pore 0001. This is a U.S. non-provisional of U.S. Provisional 450SA, a polymeric formulation including salicylic acid in an Patent Application No. 61/138.436 filed on Dec. 17, 2008. allyl methacrylate crosspolymer, is a representative poly The disclosure of the foregoing application is hereby incor meric Sustained-release form of Salicylic acid, though other porated herein by reference in its respective entirety, for all Sustained-release formulations can also be used. Further, as purposes, and the priority of Such application is hereby anti-acne additives, the formulation includes one or more claimed under the provisions of 35 USC 119. salicylates, ideally isolated as an extract from willow bark and/or aspen bark. In addition to the salicylic acid and one or BACKGROUND OF THE INVENTION more salicylates, the formulation can also include other anti 0002 Acne is the most common skin disorder in the US, acne agents, including Sulfur, benzoyl peroxide, and resorci and although this condition is generally associated with nol. puberty, it is not confined to adolescence and can persist well 0008. In addition to normal excipients found in dry pow into adulthood. The acne condition is a complex one, der foundations, the formulation includes Zinc oxide and/or impacted by a number of intrinsic and extrinsic factors, and, titanium dioxide as Sunblocking agents. The formulation can as such, must be treated with a multifaceted approach. Treat also include other Sunblocking or Sunscreen agents to prevent ment should address overproduction of sebum, hyperkerati photoaging and Sunburn, such as avobenzone, and 3-ben nization, overgrowth of P. acnes, and the ultimate blockage Zophenone. and irritation of the pilosebaceous follicle. Extrinsic factors, 0009. The foundation formulation typically also includes which exacerbate the acne condition, involve exfoliation via colorants/pigments, for example, inorganic colorants/pig harsh abrasives or mechanical Scrubbing, UV exposure, and ments, one example of which is a blend of iron oxide, bismuth Some topical and oral Substances. oxychloride, and mica. 0003 Salicylic acid is a relatively mild beta-hydroxy acid, 0010. In one embodiment, the composition further which is proven effective at correcting abnormal desquama includes one or more additional components, such as Zinc tion, the natural shedding of the outermost stratum corneum gluconate, Active Powder Purity LS9695, and pearl powder, cells. Its treatment benefits extend beyond that of the acne such as PPP-100 pearl powder. condition to include psoriasis, keratoses, and ichthyoses. By 0011. In one aspect of this embodiment, the formulation penetrating into the follicle, Salicylic acid encourages the has the following ingredients, in the ranges of weight percent sloughing of dead skin cells and other cellular debris and, ages provided below in Table 1. ultimately, clears blockages. Further benefits of its exfoliat ing action are improvements in skin texture and hyperpig TABLE 1 mentation. Representative Formulation Ranges 0004 While there are a wide variety of products on the market containing salicylic acid for treating the acne condi Ingredient Range % wiw tion, most are in the forms of lotions, creams, and liquids, Iron Oxide, Bismuth Oxychloride & Mica blend 40-75 including liquid foundation makeup. Incorporation of Sali Titanium Dioxide 5-40 cylic acid into color foundations is advantageous, as it helps Zinc Oxide 5-35 Poly-Pore 450SA O.10-12.OO to clear current breakouts while concealing them. Further Salicylic Acid & Allyl Methacrylates Crosspolymer more, continued use will help to prevent future breakouts. ABS White Willow Bark Extract Powder O.10-1O.OO Loose powder foundations are currently enjoying much Salix Nigra (Willow) Bark Extract popularity, as they impart a lightweight, natural feel on the Phytocide Aspen Bark Extract Powder O.10-1O.OO skin while providing great coverage, long wearability, oil Populus Tremuloides (Aspen) Bark Extract Givobio GZn O.10-1O.OO absorption, and diffuse the appearance of blemishes and other Zinc Gluconate skin imperfections. Providing a loose powder foundation Active Powder Purity LS9695 O.10-1O.OO with acne treatment benefits would represent an improvement Exfoliance Bamboo O.10-1O.OO over an already popular product type. Bambusa Arundinacea Stem Powder PPP-100 Pearl Powder O.10-1O.OO 0005. However, the presence of free salicylic acid may Pearl Powder serve to irritate the skin. Accordingly, it would be advanta geous to provide a loose powder foundation that provides the benefits of salicylic acid, while minimizing the degree of skin 0012. The foundation formulations combine the benefits irritation. The present invention provides such a foundation. of acne treatment and UV protection with lightweight cover age. The foundation formulations combat acne by reducing & SUMMARY OF THE INVENTION regulating sebum production, providing gentle exfoliation, destroying P acnes and other harmful microbes, soothing 0006. The present invention relates to a cosmetic compo irritation and inflammation, and restoring barrier function. sition, in the form of a dry powder foundation, that includes a The incorporation of Sunscreens also helps to improve acne, Sustained-release salicylic acid composition, an effective, as UV exposure is known to exacerbate the condition. buffering amount of one or more salicylate ions, and one or 0013. In some embodiments, the formulation can have a more of Zinc and titanium oxides. The composition can also sun protection factor (SPF) of 15 or more. The formulation include other cosmetically-acceptable actives and excipients can help heal blemishes and prevent future breakouts, clear found in dry powder foundations. The composition can be blockages, and help improve skin texture and hyperpigmen US 2010/0183528 A1 Jul. 22, 2010 tation remaining after breakouts. The Salicylic acid/salicylate well as non-active agents (excipients) can be present. The combination reduces and absorbs surface sebum, provides various active agents and optional components are described gentle exfoliation and stimulates natural exfoliation, and pro in more detail below. vides anti-microbial activity. The formulation can provide 0022 Acne Treatment antioxidant activity, soothe skin and mitigate irritation, pro 0023 The anti-acne additives include a combination of a vides a modern, natural look, provide excellent coverage and Sustained-release salicyclic acid composition, and salicy wearability, and diffuse the look of blemishes and uneven lates, either in the form of a natural extract or as a pure pigmentation compound. Examples of extracts that include Salicylates 0014. The present invention will be better understood with include willow bark and aspen bark. The amount of the sus reference to the following detailed description. tained-release salicylic acid composition, by weight percent, typically ranges from between about 0.10 to about 12.00, DETAILED DESCRIPTION which provides between about 0.05 to about 6.00 free sali cylic acid. The amount of the Salicylates, by weight percent, 0015. A dry powder foundation formulation is disclosed. typically ranges from between about 0.10 to about 10.00, The dry powder foundation formulation includes conven which can be present in the form of an extract of a natural tional foundation ingredients, as well as Sunblocking agents product that includes salicylates, such as willow bark and and anti-acne additives. The formulation provides controlled aspen bark. When in the form of an extract, the extract itself release of salicylic acid, and includes extracts containing one is typically present in a range of between about 0.055 to about or more salicylate salts. 5.50 free salicylic acid. 0024 Salicylic acid is a mild keratolytic agent, which DEFINITIONS promotes