Ingredient intelligence
Know your ingredients.
Objective guides to ingredient identity, core function, human evidence, safety context, and the related forms worth comparing.
559 of 559 ingredient guides
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Research topics explain why an ingredient is studied; they are not treatment claims or outcome guarantees.
433
Red Yeast Rice
Research on Red Yeast Rice is strongest for specific measured outcomes related to LDL-cholesterol measures; form, amount, and study context still matter. 434Rehmannia
Rehmannia is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 435Reishi Mushroom
Reishi Mushroom is studied for immune, fatigue, and quality-of-life measures, although direct human evidence remains limited and product forms are not interchangeable. 436Reishi Spore Oil
Reishi Spore Oil is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 437Resveratrol
Studies of Resveratrol examine vascular, glucose, and inflammatory biomarkers, but results and practical relevance vary by form, population, and outcome. 438Rhodiola Rosea
Studies of Rhodiola Rosea examine fatigue, stress-response, and cognitive-performance measures, but results and practical relevance vary by form, population, and outcome. 439Rhubarb Root
Rhubarb Root is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 440Rooibos
Rooibos is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 441Rose Hip
Rose Hip is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 442Rose Oil
Rose Oil is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 443Rosemary
Rosemary is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 444Royal Jelly
Royal Jelly is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 445Rutin
Rutin is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 446S-Acetyl-L-Glutathione
S-Acetyl-L-Glutathione is marketed for glutathione status and oxidative-stress measures, but reliable direct human evidence is not yet sufficient to support a clear conclusion. 447SAM-e
SAM-e is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 448Saccharomyces boulardii
Saccharomyces boulardii is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 449Safflower Oil
Safflower Oil is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 450Saffron
Studies of Saffron examine mood, appetite, and oxidative-status measures, but results and practical relevance vary by form, population, and outcome. 451Sage
Sage is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 452Sarsaparilla
Sarsaparilla is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 453Saw Palmetto
Studies of Saw Palmetto examine male urinary-flow and prostate-related symptom measures, but results and practical relevance vary by form, population, and outcome. 454Schisandra
Schisandra is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 455Chinese Skullcap
Chinese Skullcap is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 456Sea Buckthorn
Sea Buckthorn is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 457Selenium
Selenium is best understood by separating its established physiological role from claims about benefits of additional supplementation. 458Senna
Senna is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 459Serrapeptase
Serrapeptase is marketed for swelling, mucus, and recovery-related measures, but reliable direct human evidence is not yet sufficient to support a clear conclusion. 460Shark Cartilage
Shark Cartilage is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 461Shatavari
Shatavari is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 462Shiitake Mushroom
Shiitake Mushroom is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 463Shilajit
Shilajit is marketed for energy, hormone-related, and exercise measures, but reliable direct human evidence is not yet sufficient to support a clear conclusion. 464Silica
Silica is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 465American Skullcap
American Skullcap is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 466Slippery Elm
Slippery Elm is marketed for throat and digestive-comfort measures, but reliable direct human evidence is not yet sufficient to support a clear conclusion. 467Soap Nut
Soap Nut is retained as a knowledge-only entry because regulatory or safety context is essential to accurate search and AI answers. 468Superoxide Dismutase
Superoxide Dismutase is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 469Sophora japonica
Sophora japonica is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 470Soy Ingredient
Soy Ingredient is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 471Soy Isoflavones
Soy Isoflavones is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 472Soy Lecithin
Soy Lecithin is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 473Spearmint
Spearmint is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 474Spermidine
Spermidine is studied for cognitive, cardiovascular, and healthy-aging biomarkers, although direct human evidence remains limited and product forms are not interchangeable. 475Spinach Ingredient
Spinach Ingredient is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 476Spirulina
Studies of Spirulina examine lipid, glucose, inflammatory, and nutrient-intake measures, but results and practical relevance vary by form, population, and outcome. 477Spirulina Chlorella
Spirulina Chlorella combines multiple active materials; evidence on individual components cannot establish the effect of the finished formula. 478Squalene
Squalene is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 479St. John's Wort
St. John's Wort is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 480Stevia
Stevia is documented here by identity, form, human-evidence context, and safety—not by marketing claims.No ingredient guides match these filters.
Educational content only — not medical advice. These statements have not been evaluated by the Food and Drug Administration.
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