Sodium Lactate has been specially formulated for cosmetic use. It exhibits strong antimicrobial and humectant properties in cosmetic applications. Added to bar soap formulations to harden bar, increase moisture retention, and reduce cracking. Extremely hygroscopic; keep tightly covered.
If your formula calls for 1 ounce of Sodium Lactate 60% Solution, you can simply use .6 ounces of powder. Or reconstitute to a 60% solution by combining 2.4 ounces of powder with 1.6 ounces of distilled water to make 4 ounces of Sodium Lactate 60% Solution.