Searching for supplements can be overwhelming. A supplement selection guide helps you navigate the marketplace with a focus on safety, transparency, and value. With practical tips, red flags to watch for, and clear product comparisons before you buy, this guide empowers you to make informed choices. Core checks in a supplement selection guide include labeling accuracy, complete ingredient lists, and defined serving sizes. Look for third-party verifications such as USP Verified, NSF International, or Informed-Choice, and for evidence of good manufacturing practices (GMP). Understand terms like “proprietary blend” and learn how to interpret dosage and form to assess consistency and quality. Red flags outlined in the guide include missing contact information, no lot or batch number, no expiration date, vague or sensational claims, and undisclosed ingredient amounts in proprietary blends. Be wary of packaging that looks counterfeit or lacks a physical address or clear sourcing information. Pricing that seems too good to be true or inconsistent labeling are also signals to pause and investigate. For product comparisons, the guide suggests a practical checklist: compare price per serving, verify ingredient quality and certifications, assess packaging and shelf life, and note storage and handling needs. Maintain a simple comparison document as you shop, and consider sources, return policies, and accessibility. If you have medical conditions or are taking other medications, consult a healthcare professional before purchasing any supplement.