Everything DoseRank tracks on the teen health shelf — Zinc Bisglycinate. The category itself is never ranked: 459 products get scored the moment you say what you want them to do.
How to read the scores
This legend covers the scores on this page — for data sources, scoring weights, and limits, read the full methodology →
Answer a few questions about your goals, habits, stack, and budget. Then, DoseRank will find the products that best match your needs based on your answers. It's free and only takes 60 seconds! No account is required.
A saved, shareable breakdown: your matched products, dose math, interaction flags to discuss with a clinician, and a price-tracked stack you can revisit.
Questions
Each product gets a composite score blending clinical strength, evidence, dose fit, trust and value — computed for the goal you picked, across this category's products. The #1 on the DoseRank tab has the highest composite; the other tabs re-rank the same products by Value, Trust, or Popularity. Placement is never paid.
Start with a goal, not a brand
Browsing teen health supplements without a goal makes no sense — different products do different jobs, and “best” flips depending on which job you're hiring for. These are the 45 health outcomes that matter for this category. Pick yours, and the full evidence-ranked shelf loads for that goal alone.
Zinc statusBiochemical sufficiency of zinc.126 rankedStrong
Acne severityExtent or intensity of acne lesions.162 rankedModerate-strong
Vitamin A statusBiochemical sufficiency of retinoids or carotenoid-derived vitamin A.91 rankedStrong
Riboflavin statusBiochemical sufficiency of vitamin B2.79 rankedStrong
Selenium statusBiochemical sufficiency of selenium.65 rankedStrong
Vitamin B6 statusBiochemical sufficiency of pyridoxine-related compounds.109 rankedStrong
Iron statusOverall iron sufficiency and availability.161 rankedStrong
Cough severityFrequency or intensity of coughing.38 rankedStrong
Night vision or dark adaptationAbility to see or adapt under low-light conditions.60 rankedStrong
Folate statusBiochemical sufficiency of folate.87 rankedStrong
Menstrual regularityMore predictable and regular menstrual cycles.58 rankedStrong
NauseaFeeling of sickness or urge to vomit.213 rankedStrong
Biotin statusBiochemical sufficiency of biotin.75 rankedStrong
Vitamin C statusBiochemical sufficiency of ascorbic acid.131 rankedStrong
ConstipationInfrequent, difficult, or hard bowel movements.290 rankedStrongNothing is ranked yet — the shelf stays locked until you pick a goal.
No goal, no ranking.
A “best teen health supplement” list without a goal would be marketing, not evidence. Pick what you want to improve and DoseRank scores all 459 products against that goal's trials.