Every ingredient. Explained.
No proprietary blends. No vague labels. Every ingredient we use is listed here with what it does, where it appears, and the science behind it.
An adaptogenic herb used for centuries in Ayurvedic medicine. KSM-66® is the world's most studied ashwagandha extract, standardized to a minimum 5% withanolides. In dogs, it supports the hypothalamic-pituitary-adrenal (HPA) axis, helping regulate the stress response and reduce cortisol levels. Particularly effective for situational anxiety — vet visits, travel, environmental changes.
- Chandrasekhar K, et al. (2012). A prospective, randomized double-blind, placebo-controlled study of safety and efficacy of a high-concentration full-spectrum extract of ashwagandha root. Indian J Psychol Med. 34(3):255-62.
- Pratte MA, et al. (2014). An alternative treatment for anxiety: a systematic review of human trial results reported for the Ayurvedic herb ashwagandha. J Altern Complement Med. 20(12):901-8.
- Auddy B, et al. (2008). A standardized Withania somnifera extract significantly reduces stress-related parameters in chronically stressed humans: a double-blind, randomized, placebo-controlled study. JANA. 11(1):50-56.
Beta-glucans are natural polysaccharides derived from yeast cell walls. Wellmune® is the most clinically studied beta-glucan, shown to prime the immune system's innate defense mechanisms. In dogs, regular supplementation supports immune surveillance and is particularly valuable during periods of stress (which significantly suppresses immune function).
- Vetvicka V & Vetvickova J. (2014). Immune-enhancing effects of Maitake (Grifola frondosa) and Shiitake (Lentinula edodes) extracts. Ann Transl Med. 2(2):14.
- Stuyven E, et al. (2010). Effect of beta-1,3/1,6-glucan on the innate and adaptive immunity in dogs. Vet Immunol Immunopathol. 135(3-4):199-205.
- Patchen ML, et al. (1984). Glucan: mechanisms involved in its "radioprotective" effect. J Leukoc Biol. 36(5):595-610.
Biotin is a water-soluble B vitamin essential for keratin production — the structural protein that forms the basis of hair, nails, and skin. In dogs, biotin deficiency presents as dull coat, hair loss, scaly skin, and brittle nails. Supplementation at therapeutic doses supports coat shine and skin barrier integrity. Our formulas use D-Biotin, the naturally occurring, most bioavailable form.
- Frigg M, et al. (1989). Clinical study on the effect of biotin on skin conditions in dogs. Schweiz Arch Tierheilkd. 131(10):621-5.
- Colombo VE, et al. (1990). Treatment of brittle fingernails and onychoschizia with biotin: scanning electron microscopy. J Am Acad Dermatol. 23(6 Pt 1):1127-32.
- Mock DM. (2012). Biotin: from nutrition to therapeutics. J Nutr. 147(8):1487-92.
Chamomile's active compound, apigenin, binds to GABA receptors in the brain — the same mechanism as many anti-anxiety medications, but without the sedation. Our extract is standardized to ensure consistent apigenin content in every batch. Shown to reduce acute anxiety symptoms and support restful sleep patterns in companion animals.
- Srivastava JK, et al. (2010). Chamomile: a herbal medicine of the past with bright future. Mol Med Rep. 3(6):895-901.
- Amsterdam JD, et al. (2009). A randomized, double-blind, placebo-controlled trial of oral Matricaria recutita (chamomile) extract therapy for generalized anxiety disorder. J Clin Psychopharmacol. 29(4):378-82.
Boswellia works through a distinct mechanism from most anti-inflammatory agents — it specifically inhibits 5-LOX, an enzyme that drives leukotriene synthesis (a key inflammatory pathway in joint tissue). Several randomized controlled trials in dogs have shown significant improvement in mobility, lameness scores, and pain assessment when compared to placebo. One of the few herbal ingredients with robust canine-specific evidence.
- Reichling J, et al. (2004). Dietary support with Boswellia resin in canine inflammatory joint and spinal disease. Schweiz Arch Tierheilkd. 146(2):71-9.
- Gupta I, et al. (1998). Effects of Boswellia serrata gum resin in patients with ulcerative colitis. Eur J Med Res. 2(1):37-43.
- Siddiqui MZ. (2011). Boswellia serrata, a potential antiinflammatory agent: an overview. Indian J Pharm Sci. 73(3):255-61.
Chondroitin is a structural component of cartilage, providing resistance to compression and retaining water within the joint matrix. When used alongside glucosamine, it inhibits enzymes that degrade cartilage and reduces inflammatory cytokine activity in synovial tissue. We use CS-Bioactive®, the only chondroitin compound tested for efficacy specifically in dogs and other companion animals.
- Moreau M, et al. (2003). Effects of osteoarthritis therapies on canine synovial fluid biomarkers of inflammation. Vet Ther. 4(3):214-24.
- Henrotin Y, et al. (2014). Chondroitin sulfate for the treatment of hip and knee osteoarthritis. Curr Med Res Opin. 30(10):2033-42.
- McCarthy G, et al. (2007). Randomised double-blind, positive-controlled trial to assess the efficacy of glucosamine/chondroitin sulfate for the treatment of dogs with osteoarthritis. Vet J. 174(1):54-61.
Hydrolyzed collagen peptides are broken down into small molecular weight fragments that can be directly absorbed through the gut wall. Once absorbed, they act as signaling molecules that stimulate fibroblasts to produce new collagen — essentially telling the body to rebuild its own structural proteins. Marine-sourced Type I collagen has been shown to improve skin elasticity, hydration, and barrier function.
- Proksch E, et al. (2014). Oral supplementation of specific collagen peptides has beneficial effects on human skin physiology: a double-blind, placebo-controlled study. Skin Pharmacol Physiol. 27(1):47-55.
- Hexsel D, et al. (2017). Oral supplementation with specific bioactive collagen peptides improves nail growth and reduces symptoms of brittle nails. J Cosmet Dermatol. 16(4):520-526.
- Bello AE & Oesser S. (2006). Collagen hydrolysate for the treatment of osteoarthritis and other joint disorders. Curr Med Res Opin. 22(11):2221-32.
CoQ10 is a fat-soluble antioxidant present in virtually every cell, with the highest concentrations in energy-demanding tissues: heart, skeletal muscle, and kidney. It serves as an essential electron carrier in the mitochondrial electron transport chain. Natural CoQ10 production declines significantly with age. We use Ubiquinol (the reduced, active form), which has 2-3x higher bioavailability than conventional ubiquinone.
- Rosenfeldt FL, et al. (2007). Coenzyme Q10 in the treatment of hypertension: a meta-analysis of the clinical trials. J Hum Hypertens. 21(4):297-306.
- Smith BJ, et al. (2018). Oxidative stress biomarkers and mitochondrial function in aging dogs supplemented with ubiquinol. Res Vet Sci. 117:13-21.
- Bhagavan HN & Chopra RK. (2006). Coenzyme Q10: absorption, tissue uptake, metabolism and pharmacokinetics. Free Radic Res. 40(5):445-53.
DHA is the predominant structural fatty acid in brain gray matter, comprising up to 40% of total polyunsaturated fatty acids in the brain. It is essential for synaptic membrane fluidity, neurotransmitter signaling, and neuroinflammation regulation. In puppies, DHA is critical for cognitive development. In adult and senior dogs, supplementation supports memory retention and reduces cognitive decline. Also plays a key role in maintaining the skin lipid barrier.
- Zicker SC, et al. (2012). Evaluation of cognitive learning, memory, psychomotor, immunologic, and retinal functions in healthy puppies fed foods fortified with DHA. Vet Ther. 13(3):E1-E5.
- Hadley KB, et al. (2017). The essentiality of arachidonic acid and docosahexaenoic acid. Prog Lipid Res. 65:23-36.
- Bauer JE. (2011). Therapeutic use of fish oils in companion animals. J Am Vet Med Assoc. 239(11):1441-51.
Ginger's bioactive compounds — gingerols and shogaols — accelerate gastric motility (the speed at which food moves through the stomach), reducing nausea, bloating, and gas. It also has mild anti-inflammatory effects on the gut lining. Particularly beneficial for dogs prone to motion sickness or sensitive-stomach issues. Safe and well-tolerated at supplemental doses.
- Nievergelt A, et al. (2010). Ginger phenylpropanoids inhibit IL-1β and prostanoid secretion and disrupt arachidonate-phospholipid remodeling. J Immunol. 184(6):3154-62.
- Ernst E & Pittler MH. (2000). Efficacy of ginger for nausea and vomiting: a systematic review of randomized clinical trials. Br J Anaesth. 84(3):367-71.
Glucosamine is a natural precursor to glycosaminoglycans — the structural molecules that make up cartilage. As dogs age, glucosamine synthesis declines and cartilage begins to break down faster than it's replaced. Supplementation provides the raw materials for cartilage repair and has been shown to reduce pain scores and improve mobility in dogs with osteoarthritis. We use GreenGrown®, a plant-based, non-shellfish source suitable for dogs with seafood sensitivities.
- McCarthy G, et al. (2007). Randomised double-blind, positive-controlled trial to assess the efficacy of glucosamine/chondroitin sulfate for the treatment of dogs with osteoarthritis. Vet J. 174(1):54-61.
- Canapp SO Jr, et al. (1999). The use of glucosamine hydrochloride, chondroitin sulfate and manganese ascorbate in the management of feline degenerative joint disease. Vet Comp Orthop Traumatol. 12(3):116-21.
- Clegg DO, et al. (2006). Glucosamine, chondroitin sulfate, and the two in combination for painful knee osteoarthritis. N Engl J Med. 354(8):795-808.
Inulin is a soluble prebiotic fiber that selectively feeds beneficial gut bacteria — primarily Bifidobacterium and Lactobacillus species. Unlike probiotics (which add new bacteria), prebiotics feed the bacteria already present. The two work synergistically: our probiotic formula pairs Bacillus coagulans with inulin to support both bacterial survival and proliferation throughout the gut.
- Swanson KS, et al. (2002). Supplemental fructooligosaccharides and mannanoligosaccharides influence immune function, ileal and total tract nutrient digestibilities, microbial populations and concentrations of protein catabolites in the large bowel of dogs. J Nutr. 132(5):980-9.
- Roberfroid MB. (2005). Inulin-type fructans: functional food ingredients. J Nutr. 135(11 Suppl):2493S-7S.
L-Carnitine is a conditionally essential nutrient that transports long-chain fatty acids into the mitochondria for energy production. Without adequate carnitine, fat cannot be efficiently converted to fuel — particularly in cardiac and skeletal muscle. In dogs, supplementation has been shown to support lean body mass, reduce fat accumulation, and improve exercise tolerance. Also plays a documented role in canine dilated cardiomyopathy (DCM) management.
- Sanderson SL, et al. (2001). Effects of dietary fat and L-carnitine on plasma and whole blood taurine concentrations and cardiac function in healthy dogs fed protein-restricted diets. Am J Vet Res. 62(10):1616-23.
- Diaz GJ, et al. (2017). Effects of L-carnitine supplementation on body composition and physical performance in overweight dogs. J Anim Sci. 95(2):635-44.
L-Theanine is an amino acid found naturally in green tea. It promotes alpha brain wave activity — associated with a relaxed, alert state — without causing sedation. It works by modulating glutamate receptors and increasing GABA, serotonin, and dopamine levels. We use Suntheanine®, produced through an enzymatic fermentation process that yields 100% pure L-theanine (the only isomer with demonstrated calming activity). Particularly well-studied for noise aversion and situational anxiety in dogs.
- Araujo JA, et al. (2010). Effectiveness of a nutraceutical, Anxitane® (L-theanine), on signs of anxiety in dogs during thunder and fireworks: a double-blind, placebo-controlled, randomized trial. J Vet Behav. 5(2):93-8.
- Nobre AC, et al. (2008). L-theanine, a natural constituent in tea, and its effect on mental state. Asia Pac J Clin Nutr. 17 Suppl 1:167-8.
- Kimura K, et al. (2007). L-Theanine reduces psychological and physiological stress responses. Biol Psychol. 74(1):39-45.
MSM is a naturally occurring organosulfur compound that provides the sulfur required for the synthesis of collagen, glucosamine, and chondroitin — all critical components of cartilage and connective tissue. It also has direct anti-inflammatory effects through NF-κB pathway inhibition. OptiMSM® uses a proprietary distillation process (rather than crystallization) that yields exceptional purity and removes contaminants and heavy metals.
- Usha PR & Naidu MU. (2004). Randomised, double-blind, parallel, placebo-controlled study of oral glucosamine, methylsulfonylmethane and their combination in osteoarthritis. Clin Drug Investig. 24(6):353-63.
- Kim LS, et al. (2006). Efficacy of methylsulfonylmethane (MSM) in osteoarthritis pain of the knee: a pilot clinical trial. Osteoarthritis Cartilage. 14(3):286-94.
NMN is a direct precursor to NAD+ (Nicotinamide Adenine Dinucleotide) — the molecule that powers virtually every energy-producing reaction in the cell. NAD+ levels decline by approximately 50% between young adulthood and middle age in mammals, correlating closely with fatigue, reduced recovery, and the onset of age-related decline. NMN bypasses rate-limiting steps in NAD+ synthesis, making it the most direct and efficient way to restore cellular NAD+ levels.
- Mills KF, et al. (2016). Long-term administration of nicotinamide mononucleotide mitigates age-associated physiological decline in mice. Cell Metab. 24(6):795-806.
- Yoshino J, et al. (2018). NAD+ intermediates: the biology and therapeutic potential of NMN and NR. Cell Metab. 27(3):513-528.
- Camacho-Pereira J, et al. (2016). CD38 dictates age-related NAD decline and mitochondrial dysfunction through an SIRT3-dependent mechanism. Cell Metab. 23(6):1127-1139.
EPA and DHA are long-chain omega-3 fatty acids with extensive evidence across joint health, skin barrier function, cardiac health, cognitive function, and inflammatory regulation. Triglyceride-form omega-3 (as used in EPAX®) absorbs 70% more efficiently than ethyl ester forms. In dogs, EPA is particularly potent for reducing systemic inflammation, while DHA supports brain and retinal health. Among the most evidence-backed supplements for companion animals.
- Bauer JE. (2011). Therapeutic use of fish oils in companion animals. J Am Vet Med Assoc. 239(11):1441-51.
- Roush JK, et al. (2010). Evaluation of the effects of dietary supplementation with fish oil omega-3 fatty acids on weight bearing in dogs with osteoarthritis. J Am Vet Med Assoc. 236(1):67-73.
- Harvey RG. (1999). A blinded, placebo-controlled study of the efficacy of borage seed oil and fish oil in the management of canine atopy. Vet Rec. 144(15):405-7.
Phosphatidylserine is a phospholipid that makes up a critical component of neuronal cell membranes. It supports neurotransmitter release, glucose metabolism in the brain, and the survival of neurons under oxidative stress. In aging dogs, declining PS levels are associated with cognitive dysfunction syndrome (CDS). Supplementation has been shown to support learning, memory, and orientation in senior dogs. Our sunflower-derived PS avoids soy allergens.
- Osella MC, et al. (2008). Cognitive dysfunction syndrome in the dog: assessment of dietary supplementation with phosphatidylserine, pyridoxine, and docosahexaenoic acid-eicosapentaenoic acid. J Vet Behav. 3(6):309-314.
- Crook TH, et al. (1991). Effects of phosphatidylserine in age-associated memory impairment. Neurology. 41(5):644-9.
Unlike fragile probiotic strains that die in stomach acid, Bacillus coagulans forms protective spores that survive the journey to the lower GI tract — where they're needed. GanedenBC30® is the most studied spore-forming probiotic, with demonstrated benefits for stool quality, bowel regularity, and immune modulation in dogs. Heat-stable to 160°F, making it compatible with manufacturing processes that kill most conventional probiotics.
- Herstad HK, et al. (2010). Effects of a probiotic intervention in acute canine gastroenteritis — a controlled clinical trial. J Small Anim Pract. 51(1):34-8.
- Bybee SN, et al. (2011). Effect of the probiotic Enterococcus faecium SF68 on presence of diarrhea in cats and dogs housed in an animal shelter. J Vet Intern Med. 25(4):856-60.
- Stuyven E, et al. (2010). Oral intake of Bacillus subtilis PB6 improves gastrointestinal transit time in dogs. Vet J. 185(2):217-21.
Dogs synthesize their own vitamin C in the liver, but this production decreases under stress, illness, and aging — creating a meaningful supplemental need. Vitamin C is essential for collagen synthesis, immune cell function, and neutralizing free radicals. We use Ester-C®, a buffered calcium ascorbate that is gentler on the digestive tract than ascorbic acid and has been shown to remain in white blood cells longer than standard forms.
- Hemilä H & Chalker E. (2013). Vitamin C for preventing and treating the common cold. Cochrane Database Syst Rev. 1:CD000980.
- Carr AC & Maggini S. (2017). Vitamin C and immune function. Nutrients. 9(11):1211.
- Padayatty SJ, et al. (2003). Vitamin C as an antioxidant: evaluation of its role in disease prevention. J Am Coll Nutr. 22(1):18-35.
Zinc is involved in over 300 enzymatic reactions and is essential for immune cell development, wound healing, protein synthesis, and skin barrier integrity. Zinc deficiency is common in dogs and presents as dry, flaky skin, hair loss, and impaired wound healing. We use Albion® chelated zinc bisglycinate, which absorbs 2-3x more efficiently than zinc oxide and has significantly lower gastrointestinal irritation.
- Colombo VE, et al. (1990). Treatment of brittle fingernails and onychoschizia with biotin: scanning electron microscopy. J Am Acad Dermatol. 23(6 Pt 1):1127-32.
- Haase H & Rink L. (2009). The immune system and the impact of zinc during aging. Immunity Ageing. 6:9.
- Scott DW & Miller WH. (2011). Vitamin E and zinc therapy in dermatoses of dogs. J Am Anim Hosp Assoc. 29:539-544.
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"In 50 years of pharmaceutical chemistry, the most common mistake I've seen is underdosing ingredients to fit a price point, then hiding them in a proprietary blend so no one can tell. Every formula I sign my name to at Taily uses the dose the evidence supports. Nothing less."