Well, both HCG diet drops and injections are effective at giving you the desired weight loss results. But, it is proven that sublingual drops are more effective when compared to the injections as there’s no need to self-inject the hormones. Equally, the concentration of hormones is higher in the drops and most of these hormones will get absorbed directly into your body. Also, injections are painful and you need to learn the technique of self-injection. Otherwise, it could lead to some drastic side effects.