Are hcg drops at GNC really better than online “brands” such as Nuimage or HCG1234? GNC offer HCG Platinum that offers excellent weight loss as well. So then why are people more interested in buying from online than at GNC? Has anyone tried HCG Platinum of GNC? If so, how’s your experience? If anyone has tried both GNC and online products, what difference did they notice? Explain pls.