Everything DoseRank tracks on the agave nectar shelf — Marine Collagen. The category itself is never ranked: 17 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 agave nectar 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.
Wrinkle severityDegree of visible skin wrinkling.3 rankedStrong
Omega-3 indexRed blood cell EPA+DHA content reflecting omega-3 status.3 rankedStrong
Nail strengthResistance of nails to splitting or breaking.4 rankedModerate-strong
Iodine statusBiochemical sufficiency of iodine.3 rankedStrong
Skin hydrationMoisture content or hydration of the skin.3 rankedStrong
Intestinal permeabilityBarrier integrity and leakiness of the gut lining.1 rankedModerate-strong
FerritinMarker of iron stores.3 rankedStrong
HemoglobinBlood oxygen-carrying protein concentration.3 rankedStrong
TolerabilityOverall ability to continue the intervention without unacceptable side effects.1 rankedStrong
Vitamin K statusBiochemical sufficiency of vitamin K.2 rankedStrong
Vitamin C statusBiochemical sufficiency of ascorbic acid.5 rankedStrong
Vitamin E statusBiochemical sufficiency of tocopherols/tocotrienols.10 rankedStrong
Selenium statusBiochemical sufficiency of selenium.2 rankedStrong
Bone mineral densityMeasure of bone strength and mineralization.9 rankedStrong
Uric acidPurine metabolism marker associated with gout and cardiometabolic risk.5 rankedModerate-strongNothing is ranked yet — the shelf stays locked until you pick a goal.
No goal, no ranking.
A “best agave nectar supplement” list without a goal would be marketing, not evidence. Pick what you want to improve and DoseRank scores all 17 products against that goal's trials.