You don't need 20 minutes to evaluate a supplement. With the knowledge from Tier 1 and this framework, you can assess any product in about 60 seconds. Here's the 5-step system:

Step 1: FLIP IT. Ignore the front of the label entirely. Turn the product over and read the Supplement Facts panel.

Step 2: CHECK THE FORMS. Are the active ingredients in quality forms? Magnesium glycinate or magnesium oxide? Methylfolate or folic acid? Iron bisglycinate or ferrous sulfate? If a product uses the cheapest form of every ingredient, the company optimized for cost, not efficacy.

Step 3: CHECK THE DOSES. Compare each ingredient's dose to the research-backed dose. Is this citrulline at 6g or 1.5g? Is this ashwagandha at 600mg or 50mg? One underdosed ingredient is a yellow flag. Multiple underdosed ingredients is a red flag. A proprietary blend hiding all doses is a walk-away.

Step 4: SCAN THE "OTHER INGREDIENTS." How long is the list? Are there concerning items (titanium dioxide, artificial colors, talc)? A shorter Other Ingredients list generally indicates a cleaner product.

Step 5: VERIFY CLAIMS. Does the label make big claims? If so, are they backed by a real certification (USP, NSF) or just marketing language ("clinically proven," "pharmaceutical grade")? Is there a proprietary blend? Are the "clinically studied" ingredients at the clinically studied doses?

This system works for any supplement: multivitamins, pre-workouts, protein powders, sleep supplements, probiotics — everything.

Red Flags (any one is concerning, two or more = walk away):

Proprietary blend hiding individual doses. Large "Other Ingredients" section (10+ items). Titanium dioxide, artificial colors, or talc in a supplement. "Clinically studied" without specifying the dose. Multiple forms of the cheapest ingredient versions (all oxides, sulfates). Unrealistic claims ("burns fat while you sleep," "boosts testosterone 300%"). No third-party testing mentioned anywhere. Amazon-only brand with no company website.

Green Flags (indicators of quality):

Full dose transparency — every ingredient with its exact amount. Quality chelated forms (glycinate, bisglycinate, citrate, picolinate). USP Verified, NSF Certified, or ConsumerLab tested. Standardized herbal extracts with named patented forms (KSM-66, Magtein, BioPerine). Short "Other Ingredients" list (3-5 items). HPMC capsule instead of gelatin + titanium dioxide. Company publishes third-party COAs (Certificates of Analysis) on their website.

Yellow Flags (not dealbreakers but worth noting):

GMP Certified (baseline, not premium). "Non-GMO" without the Project Verified seal. "All-natural" or "pharmaceutical grade" without USP/NSF backing. Good ingredients but slightly below research doses. Gelatin capsule (not a quality issue but relevant for dietary restrictions).

The most practical skill in this tier: given two products for the same purpose, identify which is better and why.

Step 1: Normalize for comparison. Both products should be compared at their EFFECTIVE dose, not their labeled dose. If Product A provides 200mg magnesium per capsule and Product B provides 400mg per 2-capsule serving, compare both at 400mg.

Step 2: Compare forms. Which product uses better-absorbed forms? If they use the same form, this is a tie.

Step 3: Compare transparency. Does one use a proprietary blend while the other shows full doses? Full transparency wins.

Step 4: Compare "Other Ingredients." Fewer is generally better. Any concerning ingredients?

Step 5: Compare certifications. Third-party tested beats unverified.

Step 6: Compare cost per effective serving. The true economic comparison.

In practice, quality products tend to win on multiple criteria simultaneously. A company that invests in chelated mineral forms also tends to use transparent labeling, third-party testing, and clean excipients. And a company that uses cheap oxide forms typically also uses proprietary blends, artificial colors, and no third-party testing. Quality is a pattern, not a single variable.