Ingredients starting with L.
L-AlanineEnergy amino acid for blood sugar balanceEarns its place in a routineL-ArginineOriginal pump amino. Broken down before it helps.Backed by human trialsL-Arginine (Cardiovascular)Nitric oxide precursor. Blood flow support.Give it twelve weeksL-Arginine/American Ginseng/Korean Ginseng/Ginkgo Biloba-Based SupplementResearch-backed herb with potential health benefits.Earns its place in a routineL-Arginine/Korean Ginseng/Ginkgo Biloba/Damiana-Based SupplementResearch-backed herb with potential health benefits.Earns its place in a routineL-Ascorbic AcidPure vitamin C in its most bioavailable form. Supports immune function, collagen production, and antioxidant defense.Backed by human trialsL-AsparagineNervous system amino acidGive it twelve weeksL-Aspartic AcidEnergy cycle player. Urea cycle and Krebs cycle both need it.Earns its place in a routineL-CarnitineMay slightly boost fat loss and exercise performance, but effects are often subtle.Backed by human trialsL-Carnitine L-TartrateResearch-backed amino acid with potential health benefits.Backed by human trialsL-Carnitine L-Tartrate (LCLT)Recovery carnitine. Best form for exercise and testosterone.Well toleratedL-CarnosineThe longevity dipeptide. Anti-glycation, cellular protection.Backed by human trialsL-Carnosine (Eye Drops/NAC)Russian research on reversing early cataracts. Controversial but intriguing.Earns its place in a routineL-CitrullineThe pump primer.Backed by human trialsL-Citrulline (Pure)Pure citrulline without the malate. Simple and effective.Made for hard trainingL-Citrulline MalatePre-workout pump king. Converts to arginine where it counts.Backed by human trialsL-CysteineSulfur amino acid essential for hair, nails, and glutathioneBacked by human trialsL-CystineTwo cysteines bonded. Hair and nail builder.Give it twelve weeksL-Glutamic Acid (Glutamate)Brain exciter. Main excitatory neurotransmitter in your head.Earns its place in a routineL-GlutamineSupports gut health and muscle recovery.Backed by human trialsL-Glutamine (Gut Health)Amino acid fuel for gut liningBacked by human trialsL-HistidineCarnosine builder. Buffers acid, protects tissue.Give it twelve weeksL-HydroxyprolineModified proline essential for collagen structureEarns its place in a routineL-IsoleucineThe endurance BCAA. Glucose into muscles, energy on tap.Backed by human trialsL-LeucineThe muscle switch. Flips on protein synthesis like nothing else.Backed by human trialsL-LysineCollagen backbone. Also fights cold sores.Backed by human trialsL-MethionineSulfur starter. Detox pathways begin here.Give it twelve weeksL-NorvalineArginase blocker. Keeps nitric oxide around longer.Earns its place in a routineL-OrnithineAmmonia detox for better sleep and recoveryBacked by human trialsL-Ornithine HClAmmonia cleaner and growth hormone booster. Often paired with arginine.Backed by human trialsL-Ornithine L-Aspartate (LOLA)Helps your liver clear exercise byproductsBacked by human trialsL-PhenylalanineDopamine raw material. Mood and motivation builder.Backed by human trialsL-ProlineCollagen building blockGive it twelve weeksL-SerineMay support cognitive function and mood.Give it twelve weeksL-TheanineThe zen switch.Backed by human trialsL-Theanine + Caffeine StackSmooth focus. Caffeine's jitters, cancelled.Fast to feelL-ThreonineGut lining builder. Mucin production, intestinal health.Give it twelve weeksL-TryptophanMay help improve sleep and mood, especially when related to serotonin levels.Backed by human trialsL-TyrosineThe stress armor.Backed by human trialsL-ValineThe repair BCAA. Tissue maintenance, nitrogen balance.Backed by human trialsL. gasseri BNR17The belly fat strain. Korean weight research.Backed by human trialsL. helveticus R0052Psychobiotic strain. Gut-brain axis support.Backed by human trialsL. plantarum 299vIBS symptom reducer. Bloating fighter.Backed by human trialsL. reuteri ATCC PTA 6475The "testosterone probiotic." Rodent studies show impressive hormone effects.Backed by human trialsL. reuteri DSM 17938The colic-buster strain. Proven for infant gut health.Backed by human trialsLac Resin (Shellac)A natural resin coating that protects tablets from stomach acid so they dissolve in the intestines instead.One good study, more comingLactaidResearch-backed compound with potential health benefits.Backed by human trialsLactalbuminPromising first resultsLactaseResearch-backed enzyme with potential health benefits.Backed by human trialsLactase EnzymeEat dairy without the consequencesBacked by human trialsLactic Acid Bacteria Blend (L. acidophilus, B. bifidum, L. rhamnosus)A classic three-strain probiotic blend that supports digestive balance and immune function.Earns its place in a routineLactic Acid Bacteria Blend (L. acidophilus, B. bifidum, L. rhamnosus)A well-studied three-strain probiotic blend for digestive and immune support.Earns its place in a routineLacticaseibacillus casei HRVD300-USA documented L. casei strain that supports digestive balance and immune function.Earns its place in a routineLacticaseibacillus casei R0215A well-characterized probiotic strain that supports digestive and immune health.Earns its place in a routineLacticaseibacillus casei SD-CECT9104-SPA characterized L. casei strain from the Spanish Type Culture Collection with digestive and immune benefits.Earns its place in a routineLactitolPromising first resultsLacto-N-Neotetraose LNnTLacto-N-Neotetraose LNnT supplementation for targeted health support.Earns its place in a routineLacto-N-Tetraose LNTLacto-N-Tetraose LNT supplementation for targeted health support.Earns its place in a routineLactobacillus (various species)One good study, more comingLactobacillus AcidophilusMay support gut health and digestion.Backed by human trialsLactobacillus Acidophilus/Streptococcus Thermophilus/Bifidobacterium Lactis/L. Rhamnosus/B. Longum/B. Bifidum-Based Probiotic SupplementResearch-backed probiotic with potential health benefits.Earns its place in a routineLactobacillus brevisPromising first resultsLactobacillus bulgaricusPromising first resultsLactobacillus Casei DN-114001Lactobacillus Casei DN-114001 supplementation for targeted health support.Backed by human trialsLactobacillus Casei ShirotaLactobacillus Casei Shirota supplementation for targeted health support.Backed by human trialsLactobacillus crispatusPromising first resultsLactobacillus delbrueckii bulgaricusPromising first resultsLactobacillus Fermented ExtractResearch-backed herb with potential health benefits.Earns its place in a routineLactobacillus Fermentum ME-3Lactobacillus Fermentum ME-3 supplementation for targeted health support.Backed by human trialsLactobacillus Gasseri SBT2055Lactobacillus Gasseri SBT2055 supplementation for targeted health support.Backed by human trialsLactobacillus johnsoniiPromising first resultsLactobacillus paracaseiPromising first resultsLactobacillus plantarumThe barrier builder. Strengthens gut lining.Backed by human trialsLactobacillus Plantarum Strain 299VResearch-backed probiotic with potential health benefits.Well toleratedLactobacillus reuteriThe testosterone probiotic. Also great for gut and skin.Backed by human trialsLactobacillus RhamnosusMay support gut health and immune function.Backed by human trialsLactobacillus rhamnosus GGThe most studied probiotic. Gut gold standard.Backed by human trialsLactobacillus Rhamnosus/L. Jensenii/L. Crispatus/L. Gasseri Oral SupplementResearch-backed probiotic with potential health benefits.Earns its place in a routineLactobacillus-Based Probiotic CapsuleResearch-backed probiotic with potential health benefits.Earns its place in a routineLactococcus cremorisA probiotic strain traditionally used in cheese and buttermilk production that also supports gut health.Earns its place in a routineLactoferrinMilk protein for immunity. Iron-binding antimicrobial.Backed by human trialsLactoperoxidase SystemLactoperoxidase System supplementation for targeted health support.Earns its place in a routineLactoseA milk sugar used as a filler and binder in tablets. Keeps your supplement together but doesn't do anything else.Promising first resultsLactose,AnhydrousResearch-backed compound with potential health benefits.Earns its place in a routineLady's MantlePromising first resultsLaminaria Digitata KelpLaminaria Digitata Kelp supplementation for targeted health support.Earns its place in a routineLamium AlbumResearch-backed compound with potential health benefits.Earns its place in a routineLand CressPromising first resultsLanolinPromising first resultsLapacho Inner BarkLapacho Inner Bark supplementation for targeted health support.Earns its place in a routineLapachol ExtractLapachol Extract supplementation for targeted health support.Earns its place in a routineLarch ArabinogalactanTree fiber that supports immune functionBacked by human trialsLarge-leaf GentianPromising first resultsLauric arginatePromising first resultsLavenderResearch-backed compound with potential health benefits.Backed by human trialsLavender (Silexan/Oral)Patented oral lavender oil for anxietyBacked by human trialsLavender OilMay promote relaxation and improve sleep quality.Backed by human trialsLavender Oil (Silexan)Anxiety in a capsule. German engineering.Give it twelve weeksLaxogenin (5a-Hydroxy)Plant steroid marketed as a natural anabolicMade for hard trainingLean GBB (Gamma-Butyrobetaine)The "super sweater" ingredient. Converts to carnitine and makes you pour.Earns its place in a routineLebbekPromising first resultsLecithinA phospholipid-rich emulsifier that also provides choline for brain and liver health. Two jobs, does both.Give it twelve weeksLecithin, SoybeanResearch-backed fatty acid with potential health benefits.Backed by human trialsLecithinsResearch-backed fatty acid with potential health benefits.Backed by human trialsLeek ExtractLeek Extract supplementation for targeted health support.Earns its place in a routineLemonResearch-backed compound with potential health benefits.Earns its place in a routineLemon Balm (Melissa officinalis)Calm focus. The anti-anxiety herb that doesn't zonk you out.Backed by human trialsLemon Balm (Rosmarinic Acid)Gentle herb for calm focus during day and better sleep at nightEarns its place in a routineLemon Balm (Stress Formula)Calms without sedation. Also sharpens thinking.Backed by human trialsLemon Balm Extract (Cyracos)Standardized lemon balm that actually works. Calms without sedation.Backed by human trialsLemon Juice ConcentrateConcentrated lemon juice adds a citrus kick and trace vitamin C to your supplement.Promising first resultsLemon Verbena (Aloysia citrodora)Citrus-scented herb with surprising joint benefits.Earns its place in a routineLemonade FlavorA natural or organic flavoring that makes your powder supplement taste like lemonade.Promising first resultsLemongrassPromising first resultsLentil PeptidesBioactive peptides derived from lentils that may support blood pressure and antioxidant defense.Give it twelve weeksLentinanShiitake beta-glucan. Immune modulator from mushrooms.Backed by human trialsLeptadeniaPromising first resultsLeptadeniaPromising first resultsLeucic AcidLeucic Acid supplementation for targeted health support.Earns its place in a routineLeucineMay support muscle growth and recovery after exercise.Backed by human trialsLeucine tripeptidePromising first resultsLeucine-Enhanced Essential Amino Acid Dietary SupplementResearch-backed amino acid with potential health benefits.Earns its place in a routineLeucodelphinidinPromising first resultsLeuconostoc cremorisA dairy fermentation bacterium that contributes to the flavor of butter and cultured dairy while supporting gut balance.Earns its place in a routineLeuconostoc dextranicumA lactic acid bacterium that produces dextran (a prebiotic fiber), contributing to gut health in fermented food blends.Earns its place in a routineLeuconostoc mesenteroidesA key fermentation bacterium found in kimchi, sauerkraut, and kefir that supports gut microbial diversity.Earns its place in a routineLeuconostoc mesenteroidesPromising first resultsLeucyl-L-IsoleucinePromising first resultsLevocarnitineResearch-backed amino acid with potential health benefits.Backed by human trialsLevomefolateResearch-backed compound with potential health benefits.Backed by human trialsLewisia disepalaThe trials are youngLH01 Myoviridae BacteriophageA targeted bacteriophage that selectively kills harmful gut bacteria without touching the good ones.Strong for its nicheLian Qiao ExtractLian Qiao Extract supplementation for targeted health support.Earns its place in a routineLicoriceA potent anti-inflammatory root that soothes the gut and supports adrenal function. Powerful but needs respect.Backed by human trialsLicorice Root (Glycyrrhiza)Backed by human trialsLicorice Root (Glycyrrhizin)Traditional liver and adrenal herb (watch blood pressure)Backed by human trialsLigilactobacillus salivarius SD-LS1-ITA probiotic strain with specific benefits for oral health, gum health, and upper GI balance.Earns its place in a routineLignin Fiber ComplexLignin Fiber Complex supplementation for targeted health support.Earns its place in a routineLignoceric AcidPromising first resultsLigusticum Chuanxiong RhizomeLigusticum Chuanxiong Rhizome supplementation for targeted health support.Earns its place in a routineLigustilidePromising first resultsLigustrumPromising first resultsLimePromising first resultsLimonenePromising first resultsLindenPromising first resultsLingonberry VacciniumLingonberry Vaccinium supplementation for targeted health support.Earns its place in a routineLinoleic AcidResearch-backed fatty acid with potential health benefits.Backed by human trialsLinolenic AcidResearch-backed fatty acid with potential health benefits.Backed by human trialsLion's Mane (Hericium erinaceus)Brain mushroom. Nerve growth factor stimulator.Well toleratedLion's Mane Extract (Hericenones)May offer some cognitive and nerve support, but effects can vary.Backed by human trialsLion's Mane MushroomBoosts focus, memory, and nerve health.Give it twelve weeksLions Mane (NGF Focus)The only mushroom proven to stimulate nerve growth factorWell toleratedLipaseFat digestion supportBacked by human trialsLipidoxPromising first resultsLiposomal GlutathioneGlutathione in fat bubbles. Absorption finally solved.Backed by human trialsLiposomal Vitamin CHigh-absorption vitamin C. Liposomal delivery.Backed by human trialsLiquid ChlorophyllPlant pigment marketed as internal deodorantEarns its place in a routineLithium Aspartate Low DoseLithium Aspartate Low Dose supplementation for targeted health support.Fixes a real deficiencyLithium CitrateLithium Citrate supplementation for targeted health support.Backed by human trialsLithium OrotateMay help stabilize mood and support mental well-being.Backed by human trialsLithium Orotate (Low Dose)Micro-dose lithium for mood stability and brain healthBacked by human trialsLithothamnion (Red Algae Calcium)A marine red algae that's one of nature's best sources of plant-based calcium and 72 trace minerals.Backed by human trialsLithothamniumPromising first resultsLiver Glandular DesiccatedLiver Glandular Desiccated supplementation for targeted health support.Earns its place in a routineLiver Support ComplexEvidence-based liver protection and support.Earns its place in a routineLL-37Earns its place in a routineLL12 Myoviridae BacteriophageA precision antimicrobial phage that targets specific harmful bacteria in your gut.Strong for its nicheLL5 Siphoviridae BacteriophageA targeted phage that eliminates specific harmful bacteria while leaving your beneficial microbiome intact.Strong for its nicheLo HanPromising first resultsLo Han GuoPromising first resultsLo Han Guo concentrateThe trials are youngLobeliaEarns its place in a routineLocust Bean GumPromising first resultsLoganberry ExtractLoganberry Extract supplementation for targeted health support.Earns its place in a routineLollipop ClimberOne good study, more comingLomatiumPromising first resultsLong BuchuOne good study, more comingLong Dan Cao ExtractLong Dan Cao Extract supplementation for targeted health support.Earns its place in a routineLong Pepper PiperineLong Pepper Piperine supplementation for targeted health support.Earns its place in a routineLongan Dimocarpus LonganLongan Dimocarpus Longan supplementation for targeted health support.Earns its place in a routineLongevity Foundation StackBasic longevity supplements.Earns its place in a routineLongjackLongjack supplementation for targeted health support.Well toleratedLonicera Japonica FlowerLonicera Japonica Flower supplementation for targeted health support.Earns its place in a routineLophatherumPromising first resultsLoquatPromising first resultsLoranthusPromising first resultsLow-Dose Naltrexone (LDN)The addiction drug repurposed for inflammationBacked by human trialsLow-Dose RapamycinPrescription mTOR inhibitor with most consistent lifespan extension in animalsBacked by human trialsLu Rong (Deer Antler Velvet)Earns its place in a routineLucuma Pouteria LucumaLucuma Pouteria Lucuma supplementation for targeted health support.Earns its place in a routineLumbrokinaseFibrinolytic enzyme from earthworms. Breaks down blood clots.Backed by human trialsLungwort (Pulmonaria)Doctrine of signatures herb for lungsEarns its place in a routineLuo Han GuoPromising first resultsLupinPromising first resultsLupulonePromising first resultsLuteinSupports eye health and may reduce the risk of age-related macular degeneration.Backed by human trialsLutein/Zeaxanthin (20:4)The gold standard for macular degeneration preventionBacked by human trialsLuteolinThe brain-calming flavonoid. Anti-inflammatory, neuroprotective.Backed by human trialsLychee Litchi ChinensisLychee Litchi Chinensis supplementation for targeted health support.Earns its place in a routineLyciumLycium supplementation for targeted health support.Earns its place in a routineLycium Barbarum GojiLycium Barbarum Goji supplementation for targeted health support.Backed by human trialsLycium Chinense BarkLycium Chinense Bark supplementation for targeted health support.Earns its place in a routineLycopeneResearch-backed compound with potential health benefits.Backed by human trialsLycopene Complex (Colorant)A natural red pigment from tomatoes used to color supplements. Has real antioxidant benefits if the dose is right.Give it twelve weeksLycopodium ClavatumResearch-backed fatty acid with potential health benefits.Promising first resultsLygodiumPromising first resultsLymphPromising first resultsLyophilized Black Raspberry LozengeResearch-backed compound with potential health benefits.Earns its place in a routineLyophilized Black Raspberry Saliva SubstituteResearch-backed compound with potential health benefits.Earns its place in a routineLysimachiaPromising first resultsLysineMay support the prevention of cold sores and support immune health.Backed by human trialsLysine (Immune)May help manage herpes outbreaks and supports immune function.Give it twelve weeksLysine MonohydrateResearch-backed amino acid with potential health benefits.Backed by human trialsLysozymeNatural antimicrobial enzyme. In tears and saliva.Give it twelve weeks
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