METHODS AND FORMULATIONS FOR TRANSDERMAL ADMINISTRATION OF DERMAL CONTOURING AGENTS

1 . A pre-treatment and/or treatment formulation for transdermal delivery of a dermal pre-treatment agent and/or one or more dermal contouring agents through the skin of a subject,

wherein the pre-treatment formulation comprises:

a) a buffering agent comprising at least one carbonate salt, lysine, tris, a phosphate buffer and/or 2-imidazole-1-yl-3-ethoxycarbonylpropionic acid (TEPA), or a combination thereof in an amount between about 0.05-60% w/w; and

b) a pre-treatment penetrant portion in an amount between about 40 to 99.95% w/w, and

wherein the treatment formulation comprises:

c) one or more acylating agents in an amount between about 0.25-25% w/w; and

d) a treatment penetrant portion in an amount between about 40 to 75% w/w.

2 . The formulation of claim 1 , wherein the acylating agent is selected from the group consisting of glutaric anhydride, EDTA anhydride, octenyl-succinic anhydride, maleic anhydride, succinic anhydride, citraconic anhydride, methyl succinic anhydride, itaconic anhydride, methyl glutaric anhydride, dimethyl glutaric anhydride, phthalic anhydride, oxalyl chloride, malonyl chloride, (chlorosulfonyl)acetylchloride, (chlorosulfonyl)benzoic acid, 4-chloro-3-(chlorosulfonyl)-5-nitroebnzoicacid, 3-(chlorosulfonyl)-p-anisic acid, 3-(sulfonyl)benzoic acid, 3,5-Dimethoxybenzoyl chloride, acetic anhydride, chloroacetic anhydride, propionic anhydride, butyric anhydride, isobutyric anhydride, isovaleric anhydride, hexanoic anhydride, acetylchloride, propionylchloride, dichloropropionylchloride, butyryl chloride, isobutyryl chloride, valeryl chloride, ethanesulfonyl chloride, methanesulfonyl chloride, 1-butanesulfonyl chloride, 4,6-diamino-2-methylthiopyrimidine-5-Sulfonic acid, and combinations thereof.

3 . The formulation of claim 1 , wherein the pre-treatment formulation is anhydrous.

4 . The formulation of claim 1 , wherein the pre-treatment and/or treatment penetrant penetrant portion comprise lecithin organogel in an amount between about 10-70% w/w of the formulation.

5 . The formulation of claim 1 , wherein the pre-treatment and/or treatment formulation comprises less than about 35% w/w lecithin organogel.

6 . The formulation of claim 1 , wherein the pre-treatment and/or treatment formulation comprises less than about 12% w/w lecithin organogel.

7 . The formulation of claim 1 , wherein the pre-treatment and/or treatment penetrant portion further comprises a detergent portion in an amount between about 1 to 70% w/w.

8 . The formulation of claim 7 , wherein the detergent portion comprises a nonionic surfactant in an amount between about 2-25% w/w of the penetrant portion; and a polar solvent in an amount less than 5% w/w of the penetrant portion.

9 . The formulation of claim 1 , wherein the buffering agent is in an amount between about 0.05-36% w/w of the formulation.

10 . The formulation of claim 1 , wherein the pre-treatment and/or treatment penetrant portion is in an amount between about 44-80% w/w of the formulation.

11 . The formulation of claim 1 , wherein the pre-treatment and/or treatment penetrant portion comprises an alcohol in an amount less than 10% w/w of the formulation.

12 . The formulation of claim 1 , wherein the pre-treatment and/or treatment penetrant portion comprises lecithin organogel, an alcohol, a surfactant, and a polar solvent.

13 . The formulation of claim 1 , wherein the pre-treatment and/or treatment penetrant portion comprises a mixture of xanthan gum, lecithin, sclerotium gum, pullulan, or a combination thereof in an amount less than 5% w/w of the formulation.

14 . The formulation of claim 1 , wherein the pre-treatment and/or treatment penetrant portion comprises a mixture of caprylic triglycerides and capric triglycerides in amount less than 8% w/w of the formulation.

15 . The formulation of claim 1 , wherein the pre-treatment and/or treatment penetrant portion comprises lecithin, phosphatidylcholine, hydrogenated phosphatidylcholine, phosphatidylserine, phosphatidylethanolamine, phosphatidylinositol, one or more phosphatides, one or more Inositol phosphatides, or combinations thereof, in amount less than 12% w/w of the formulation.

16 . The formulation of claim 1 , wherein the pre-treatment and/or treatment penetrant portion comprises cetyl alcohol in amount less than 5% w/w of the formulation.

17 . The formulation of claim 1 wherein the pre-treatment and/or treatment penetrant portion comprises stearic acid in an amount less than 5% w/w of the formulation.

18 . The formulation of claim 1 , wherein the pre-treatment and/or treatment formulation comprises a gelling agent in an amount less than 5% w/w of the formulation.

19 . The formulation of claim 1 , wherein the carbonate salt is sodium bicarbonate milled to a particle size less than 70 μm, wherein the sodium bicarbonate is solubilized in the formulation in an amount less than 10% w/w of the formulation.

20 . The formulation of claim 1 , wherein the pre-treatment and/or treatment formulation each independently further comprise tranexamic acid in an amount less than 5% w/w of the formulation.

21 . The formulation of claim 1 , wherein the pre-treatment and/or treatment formulation each independently further comprise a polar solvent in an amount less than 5% w/w of the formulation.

22 . The formulation of claim 1 , wherein the pre-treatment and/or treatment formulation each independently further comprise a humectant, an emulsifier, an emollient, or a combination thereof.

23 . The formulation of claim 1 , wherein the pre-treatment formulation has a pH of 7-10.5.

24 . The formulation of claim 1 , wherein the pre-treatment formulation comprises:

Isododecane 1-20% w/w;

Tego 13-06 1-10% w/w;

Hyaluronic acid 0.05-10% w/w;

Propylene glycol in an amount between about 0.5-15% w/w;

Sodium carbonate in an amount between about 1-25% w/w;

Calcium carbonate in an amount between about 1-36% w/w.

Ethanol in an amount between about 0.5-10% w/w; and

Benzyl alcohol in an amount between about 0.25-5% w/w.

The formulation of claim 1 , wherein the treatment formulation comprises:

EDTA (Disodium ethylenediaminetetraacetate dihydrate) in an amount between about 0.05-5% w/w;

Triethanolamine in an amount between about 0.05-2% w/w;

tert-Amyl alcohol in an amount between about 0.5-10% w/w;

Triacetin in an amount between about 1-60% w/w;

Isopropyl palmitate in an amount between about 1-10% w/w;

Sodium hydroxide in an amount between about 0.005-2% w/w;

Sodium decanoate in an amount between about 0.05-5% w/w;

Sodium bicarbonate in an amount between about 0.05-10% w/w;

Sodium carbonate in an amount between about 0.05-10% w/w;

Benzyl alcohol in an amount between about 0.25-5% w/w; and

Glutaric anhydride in an amount between about 1-10% w/w

25 . A pre-treatment and/or treatment formulation for transdermal delivery of a dermal pre-treatment agent and/or one or more dermal contouring agents through the skin of a subject,

wherein the pre-treatment formulation comprises: Table 1, Table 4, Table 7, Table 9, Table 11, or Table 13; and

wherein the treatment formulation comprises: Table 2, Table 5, Table 8, Table 10, Table 12, or Table 14.

26 . A method for transdermal delivery of the pre-treatment and/or treatment formulation of claim 1 , through the skin of a subject.

27 . The method of claim 26 , wherein the pre-treatment formulation is applied to a subject and the treatment formulation is applied to the subject after the pre-treatment formulation.

28 . A method to expand tissue volume comprising applying the pre-treatment and/or treatment formulation of claim 1 , through the skin of a subject, the method comprising:

a) mixing the one or more acylating agents in powdered form with the treatment penetration portioning immediately followed by application of the mixture to a skin area of the subject.

29 . A method to expand tissue volume comprising applying the pre-treatment and/or treatment formulation of claim 1 , through the skin of a subject, the method comprising:

a) mixing the one or more acylating agents in powdered form with the treatment penetration portioning immediately followed by application of the mixture to a skin area of the subject; or

b) first, applying to a skin area of the subject the pre-treatment formulation buffered at pH 7-11.5 comprising an effective amount of said acylating agent, 25-70% w/w lecithin organogel, 1-20% w/w benzyl alcohol, and a nonionic detergent in the presence of a bile salt; and second mixing the one or more acylating agents in powdered form with the treatment penetration portioning immediately followed by application of the mixture to a skin area of the subject.

30 . A method to expand volume and maintain hydration of tissue which method comprises applying to an area the pre-treatment and/or treatment formulation of claim 1 , through the skin of a subject, the method comprising:

a) mixing the one or more acylating agents in powdered form with the treatment penetration portioning immediately followed by application of the mixture to a skin area of the subject.

31 . A method to expand volume and maintain hydration of tissue which method comprises applying to an area the pre-treatment and/or treatment formulation of claim 1 , through the skin of a subject, the method comprising:

a) mixing the one or more acylating agents in powdered form with the treatment penetration portioning immediately followed by application of the mixture to a skin area of the subject; or

b) first, applying to a skin area of the subject the pre-treatment formulation buffered at pH 7-11.5 comprising an effective amount of said acylating agent, 25-70% w/w lecithin organogel, 1-20% w/w benzyl alcohol, and a nonionic detergent in the presence of a bile salt; and second mixing the one or more acylating agents in powdered form with the treatment penetration portioning immediately followed by application of the mixture to a skin area of the subject.

32 . A method to restore the barrier effect of skin after transdermal treatment, which method comprises applying the pre-treatment and/or treatment formulation of claim 1 , through the skin of a subject, the method comprising:

a) mixing the one or more acylating agents in powdered form with the treatment penetration portioning immediately followed by application of the mixture to a skin area of the subject.

33 . A method to restore the barrier effect of skin after transdermal treatment, which method comprises applying the pre-treatment and/or treatment formulation of claim 1 , through the skin of a subject, the method comprising:

a) mixing the one or more acylating agents in powdered form with the treatment penetration portioning immediately followed by application of the mixture to a skin area of the subject; or

b) first, applying to a skin area of the subject the pre-treatment formulation buffered at pH 7-11.5 comprising an effective amount of said acylating agent, 25-70% w/w lecithin organogel, 1-20% w/w benzyl alcohol, and a nonionic detergent in the presence of a bile salt; and second mixing the one or more acylating agents in powdered form with the treatment penetration portioning immediately followed by application of the mixture to a skin area of the subject.