(Not the cheapest options) But Big Jay Cutler got you with:
Fundamentals Intra or Post Workout Recovery Drink: 4 Key Ergogenic Aids for Maximum Performance and Muscle Growth: Creatine, Beta-Alanine, Betaine, and Leucine, 30 Servings, Unflavored Invalid Link Removed
And the Genius nerds have formulated:
Genius Creatine Powder, Post Workout Supplement For Men and Women with Creapure Monohydrate, Hydrochloride Hcl MagnaPower and Carnosyn Beta-Alanine SR, Natural Lean Muscle Builder – Sour Apple, 188G Invalid Link Removed