Common side effects include pain, redness, or swelling at the injection site
The Lipotropic ingredients in Lipo B-Complex tablets are manufactured in an FDA-registered facility, cGMP certified, and each batch is 3rd party tested for quality COMPREHENSIVE B-VITAMIN FORMULA: Contains all essential B-vitamins including thiamine (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), pyridoxine (B6), biotin, folic acid, and vitamin B12 to support energy production, amino acid metabolism, and cell division LIPOTROPIC SUPPORT: Assists with the breakdown of fats and the production of cholesterol and certain hormones, while supporting proper mobilization of adipose tissue and increased energy throughout the day ENHANCED WITH VITAMIN C AND D3: Each tablet contains 500 mg of vitamin C to boost immune system function and fight fatigue and stress, plus vitamin D3 for additional wellness support

The National Institutes of Health points out that these factors can make it difficult to maintain healthy levels through diet alone, which is why its so important to be aware of your personal risk
And for fantastic, evidence-based nutrition info, visit Sports Dietitians Australia