Small amounts of foam are normal and will dissipate within a few minutes if you let the vial sit undisturbed
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2007 Sep 10;570(1-3):212-21
Curcumin Reported dosage: 24.5 grams daily (but formulations vary) Curcumin is a major active constituent of turmeric, a rhizome used for millennia as a traditional culinary ingredient and in Ayurvedic medicine as a remedy for health concerns such as musculoskeletal, digestive, and skin conditions (Aggarwal 2007)
The CT group was injected with 3 mL (15 mg) of dexamethasone sodium phosphate (Henan Runhong Pharmaceutical Co., Ltd., Henan, China) and 2 mL (1 mg) of VB12 (Tianjin JinYao Pharmaceutical Co., Ltd., Tianjin, China)