After shave treatment preparation

Details After shave treatment preparation After shave treatment preparation

1999-10-26

2001-08-21

Spear, James M. (Department: 1615)

Drug, bio-affecting and body treating compositions

Live hair or scalp treating compositions

Shaving preparation

C424S401000

Reexamination Certificate

active

06277362

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to an after shave preparation useful in treating the skin disorder known as Pseudofolliculitis Barbae (PFB) sometimes called “razor bumps.” This complication can occur on the face and neck area of men and in the bikini area of women as the result of shaving. The after shave treatment reparation is applied to the skin after shaving for treatment and prevention of Pseudofolliculitis Barbae by eliminating or significantly reducing the inflammation and bumps caused by shaving.
BACKGROUND OF THE INVENION
Pseudofolliculitis Barbae or ingrown hairs is a bacterial disorder, usually caused by
staphylococcus aureus
, the characteristic lesions being erythematous papules, and sometimes pustules containing buried hairs. Shaving often induces the condition when hairs which are sharpened by shaving curve back and penetrate the skin proximate the follicle from which the hair initially surfaced, thereby causing the characteristic papules or “razor bumps.” The natural curvature of the facial hair of black males makes them particularly susceptible to Pseudofolliculitis Barbae (PFB), especially in the submandibular region of the neck. Many others are also susceptible to the disorder. The bikini area in women, especially, is often affected following shaving.
The prevention of Pseudofolliculitis Barbae has been difficult. One proposed solution is the use of depilatory preparations; however, while this is an effective remedy in achieving removal of hair by non-cutting means before it re-surfaces from the skin, the depilatory itself is an irritant and some hair still may pierce the follicular wall.
U.S. Pat. No. 5,853,709, issued Dec. 29, 1998 to Willis et al. teaches the use of a bacteriostatic/hemo styptic agent in the treatment of Pseudofolliculitis Barbae and U.S. Pat. No. 4,867,967, issued Sep. 19, 1989 to Crutcher discloses the use of povidone iodine in the treatment and prevention of PFB. U.S. Pat. No. 5,204,093, issued Apr. 20, 1993 to Victor teaches the use of benzoyl peroxide in the treatment of PFB.
U.S. Pat. No. 4,775,530 issued Oct. 4, 1998 to Perricone teaches the use of alpha-hydroxy acids in the treatment of Pseudofolliculitis Barbae. U.S. Pat. Nos. 5,847,003 and 5,834,513 disclose novel oxa-acid and di-acids as the “active principals” in the topical treatment of PFB.
U.S. Pat. No. 5,034,221 issued Jul. 23, 1991 to Rosen et al. teaches the use of acetylsalicylic acid, corn starch, isopropyl alcohol and aloe vera in the treatment of Pseudofolliculitis Barbae, while U.S. No. Pat. No. 5,747,021 teaches a similar composition for treatment of PFB further including carbomer and water to eliminate the chalky appearance associated with the use of acetylsalicylic acid.
U.S. Pat. No. 4,944,939 is directed to a steroidal composition in combination with salicylic acid for the treatment and prevention of Pseudofolliculitis Barbae.
U.S. Pat. No. 5,445,823, issued Aug. 29, 1995 to Hall et al. is directed to compositions which may include the use of pantothenic acid derivatives in combination with benzoyl peroxide to reduce the irritation associated with benzoyl peroxide use in skin disorders not related to Pseudofolliculitis Barbae such as acne and sebhorrhea.
U.S. Pat. No. 5,885,597, issued Mar. 23, 1999 to Botnecht teaches a topical steroid in combination with an arylpropionic acid analgesic such as ibuprofen and a p-amino-benzoic acid ester type analgesic for the relief of pain.
U.S. Pat. No. 5,665,339, issued Sep. 9, 1997 to Simmons teaches an anhydrous after shave preparation comprising a silicone fluid in combination with 10-90% alcohol and a perfume which preparation may include anti-inflammatories, salicylic acid, propylene glycol and/or glycerol and pantothenic acid derivatives. This silicone-containing composition is directed to achieving superior skin feel rather than treating Pseudofolliculitis Barbae.
SUMMARY OF THE INVENTION
The present invention comprises a non-steroidal anti-inflammatory after shave preparation to aid in the prevention and treatment of Pseudofolliculitis Barbae and a method of delivering the ingredients of the preparation to the affected areas of the skin. The after shave preparation of the invention is applied twice daily (after shaving or hair removal by other means and again before retiring at night) in order to maximize the beneficial effects of the preparation through an entire twenty-four hour period. Further, the after shave preparation of the invention helps improve the overall condition of the skin.
One object of the invention is to provide an after shave preparation to aid in prevention and treatment of Pseudofolliculitis Barbae said preparation comprising ethanol, salicylic acid, propylene glycol, glycerine, fragrance, at least one compound for reducing skin irritation associated with Pseudofolliculitis Barbae selected from the group consisting of panthenol, pantothenic acid, pantetheine, and pantethine; and at least one non-steroidal anti-inflammatory agent wherein said agent is an NSAID drug, a naturally occurring herbal compound containing an anti-inflammatory component, or a combination thereof.
Another object of the invention is to provide an after shave preparation to aid in prevention and treatment of Pseudofolliculitis Barbae said preparation comprising water, hydrolyzed oat flour, sorbitol, methylparaben, petrolatum, lanolin, cetyl alcohol, sunflower seed oil, stearic acid, propylparaben, triethanoloamine, a preservative, and at least one non-steroidal anti-inflammatory agent wherein said agent is an NSAID drug, a naturally occurring herbal compound containing an anti-inflammatory component or a combination thereof.
A further object of the invention is to provide after shave preparations to aid in the prevention and treatment of Pseudofolliculitis Barbae with sufficient viscosity to allow the preparation to remain on an affected area of the skin for a sufficient period of time to optimize the therapeutic effects on the affected area thus providing local relief from irritation due to PFB.
The foregoing and other objects and advantages of the invention will become apparent from the more detailed description of the invention.
DETAILED DESCRIPTION OF THE INVENTION
The ingredients of the present invention include compounds which reduce the swelling and irritation associated with the “razor bumps” which are characteristic of Pseudofolliculitis Barbae and are effective in preventing recurrence of the disorder.
Anti-irritants useful in the present invention preparations may be selected from the group consisting of panthenol, pantothenic acid, pantetheine, and pantethine.
Also useful are non-steroidal anti-inflammatory drugs (NSAIDS). The NSAIDS can be selected from the following categories: propionic acid derivatives, acetic acid derivatives, biphenylcarboxylic acid derivatives, fenamic acid derivatives and oxicams. All of these NSAIDS are fully described in U.S. Pat. No. 4,985,459 to Sunshine et al. issued Jan. 15, 1991. Most preferred are the propionic NSAIDS including but not limited to acetylsalicylic acid, acetaminophen, ibuprofen, naproxen, benoxaprofen, flurbiprofen, fenoprofen, fenobufen, ketoprofen, indogrofen, pirprofen, caprofen, oxaprozin, pranoprofen, miroprofen, tioxaprofen, suprofen, almionoprofin, tiaprofemic acid, fluprofen and bucloxic acid.
Also useful are naturally occurring herbal compounds containing anti-inflammatory components. Such ingredients may include but are not limited to willow bark, turmeric root, licorice root and ginger root.
The after shave preparations of the present invention result from the combinations of:
Ethanol, glycerine, propylene glycol, salicylic acid, fragrance, at least one compound for reducing skin irritation associated with Pseudofolliculitis Barbae selected from the group consisting of panthenol, pantothenic acid, pantetheine, and pantethine, and, at least one non-steroidal anti-inflammatory agent wherein said agent is an NSAID drug, a naturally occurring herbal compound containing an anti-inflammatory component or a combination thereof (FORMULA I)

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