Lotion which is temporarily colored upon application

Apparatus for temporarily colorizing skin, comprising

• (A) a cap housing for housing a physiologically compatible pH indicator, the pH indicator having substantially no visible color within a pH range of about 7.0 to 7.5, and having a visible color outside the pH range,
• (B) means for attaching the cap housing to a container such that a composition within the container passes through the cap housing to exit the container, and
• (C) means for mixing the pH indicator with the composition while the composition passes through the cap housing.

In a method of manufacturing a lotion of the type which is suitable for application to human skin, the improvement comprising the steps of introducing a physiologically compatible pH indicator to the lotion, the pH indicator having substantially no visible color within a pH range of the human skin, and having a visible color outside the pH range.

A method of obtaining uniform melanin production in the epidermis and of protecting the epidermis from exposure to UV radiation, comprising the steps of applying a protective amount of a composition having a pH outside the range of about 7.0 to 7.5 to the epidermis, the composition comprising a UV-absorbing compound and a pH indicator, the pH indicator having a visible color outside the pH range of about 7.0 to 7.5, having substantially no visible color in the pH range, and becoming colorless upon prolonged contact with the epidermis, the presence of the visible color on the epidermis being indicative of the location and amount of composition thereon, thereby enabling even distribution of the composition, and resulting in uniform malanin production and protection from exposure to UV radiation.

A method of preparing a suntan lotion composition comprising the step of mixing a UV-absorbing compound in a carrier with a pH indicator, the pH indicator having a visible color above about pH 7.5, and having substantially no color at a pH of a human epidermis, wherein the composition has a free-standing visible color and becomes colorless upon prolonged contact with the epidermis.

In a composition for application to human skin, the improvement comprising (A) a physiologically compatible pH indicator having substantially no visible color within a pH range of the human skin, and having a visible color outside the pH range, and (B) one or more physical sunscreening agents selected from the group of (i) red petrolatum, in amounts of about 30% to about 99% by weight of the composition, (ii) titanium dioxide, in amounts of about 2% to about 25% by weight of the composition, and (iii) talc, (iv) kaolin, (v) chalk, and (vi) precipitated silica, each of (iii)-(vi) being in amounts of about 1% to about 10% by weight of the composition.

In a composition for application to human skin, the improvement comprising (A) a physiologically compatible pH indicator having substantially no visible color within a pH range of the human skin, and having a visible color outside the pH range, and (B) a sunscreen agent selected from the group of (i) a UVB sunscreen having about 1.5% to about 8.0% by weight of a octyl dimethyl PABA composition;

• (ii) octyl para-methoxycinnamate in amounts of about 1.5% to about 7.5% by weight of the composition;
• (iii) homomenthyl salicylate in amounts of about 4.0% to about 15% by weight of the composition;
• and (iv) octyl salicylate in amounts of about 3% to about 5% by weight of the composition.

A composition for topical application to human skin, comprising

• a formulation selected from the group consisting of lotions, mousses, gels, medications, cremes, moisturizers, lotions, ointments, waxed based sticks, aerosols, alcohol sticks, oil-in-water creams, oil-in-water lotions, water-in-oil lotions, oil-in-water resistant creams and lotions, oils, hand and body lotions, oil-in-water emollient creams, moisturizing lotions, after sun emollient sticks, facial spray mist, skin mousse, moisturizing gel, and mixtures thereof;
• and
• a physiologically compatible pH indicator, the formulation and the pH indicator having, in combination, substantially no visible color within a pH range of the human skin, a visible color outside the pH range, the formulation and the pH indicator further becoming substantially clear when in contact with human skin for less than about four minutes.