Best Immune Support Amino Acid Supplements in 2025

FREE RADICAL PROTECTION/NORMAL IMMUNE SYSTEM FUNCTION: N-acetyl cysteine (NAC) is a stable form of the non-essential amino acid cysteine.

Maintains cellular health: NAC can help to support healthy brain and neuronal tissues.

Classifications/certifications: Kosher, non-GMO, soy free, nut free, made without gluten, dairy free, egg free

GNC Mega Men Sport: A Clinically Studied Multivitamin^ Outperform The Competition With A Time Released Sport Multivitamin^*. Giving your all in the gym or on the field can cause you to lose key vitamins through sweat. GNC Mega Men Sport uses timed release technology to deliver a high potency multivitamin blend clinically shown to work better than a basic multivitamin and clinically proven to improve nutrient levels and feelings of mental wellbeing^*. Fuel Next-Level Performance And Energy*.

GNCs high potency multivitamin blend is clinically shown to help you feel better, more rejuvenated, and absorb key nutrients*^.

Crafted for men's health and an active lifestyle with proven ingredients to support muscle performance, energy production, and a healthy immune system*

ORGANIC SPORT PROTEIN: Certified USDA Organic, Non-GMO Project Verified, NSF Certified for Sport, Informed-Choice for Sport Certified, Vegan, Gluten Free, Dairy Free, No added sugars

POST WORKOUT RECOVERY: Our Garden of Life Vegan Protein helps you refuel & repair muscles after a hard workout with 30g of Complete Protein and over 5g BCAA amino acids

RECOVERY DRINK: This sport protein powder promotes faster recovery with a Organic High Antioxidant Blend of Organic Tart Cherries, Organic Apples, Organic Turmeric, Organic Gogi berries and Organic Blueberries

Wound Healing: Supports the healing of unhealthy skin by promoting collagen formation

Immune Health: Lysine’s nutritional support helps the body maintain its natural defenses and promotes healthy gum and lip tissues

Skin And Bone Health: Promotes collagen formation for healthy and elastic skin, while also promoting calcium absorption for strong bones and teeth

FAST RELIEF / PEAK IMMUNE SUPPORT – Our advanced zinc chelate supplements deliver zinc in the form of Bisglycinate, a clinically proven highly absorbable form that ensures faster acting results. Pure Zinc further acts to neutralize free radicals, inflammatory response and increase energy levels; the foundations for a strong healthy immune system. Boosting your immune systems response time and enhancing long-term immune health.

FEEL ENERGETIC, ENJOY CLEAR SKIN, SUPPORT REPRODUCTIVE HEALTH - Zinc is an essential mineral for cell function and healthy tissue development, in particular, DNA synthesis and cell division, promoting a healthy reproductive system. It’s critical for supporting clear skin (eg: managing skin irritations, acne) and healthy hair & eyes

GENTLE, NO UPSET STOMACH - Pure Zinc contains a very gentle form of Zinc that breaks down in the small intestine, greatly reducing the incidence of digestive discomfort and/or diarrhoea. Perfect for women, men, elderly, women during pregnancy & teenagers who are prone to stomach irritability following vitamin supplementation. Pure Zinc is easily digested with or without food.

Immune Support*/Highly Bioavailable Form: A Form Of Zinc Complexed With The Amino Acid Methionine.

Supports Enzyme Function*/With Copper: Take 1 Capsule Daily.

DRINK DAILY FOR YOUR HEALTH: Drinking our Aloe Vera Juice daily can help support immune and gut health, balance stomach acid, ease occasional acid indigestion, lower toxins in the body preventing cellular absorption, and overall muscle and joint health.

IMPROVE SUPPLEMENT ABSORPTION: The aloe vera plant has 18 amino acids plus multiple vitamins and studies prove the value of aloe vera improving the absorption of supplements. Aloe vera drink can also soothe occasional muscle and joint discomfort.

BOOST DIGESTIVE HEALTH: In addition to sustaining and promoting regularity, organic juice from the aloe vera plant can aid in the maintenance of your overall digestive system's health and balance the pH of the stomach.

✔️A Key Non-Essential Amino Acid - Glycine is a key amino acid for protein synthesis which includes creatine and glutathione. Supplementing with our Glycine powder, with 1000mg per serving, may help support the levels of these compounds in your body.*

✔️Supports Overall Wellness - Not only that it's a key amino acid, Glycine may help support the body, including liver and the immune system.* Add our Glycine powder, a glycine supplement, to your daily diet and routine for your overall health and wellness!*

✔️ Unflavored, Gluten Free & No Filler - Our Glycine Powder is free of gluten, dairy, soy and especially no added sugar which is ideal for those with dietary restrictions. And, our glycine supplement is a great addition to any shake, smoothie, and juice, or simply just water because it's unflavored with no artificial flavoring!

HIGHEST QUALITY PLANT-BASED PROBIOTICS that are naturally fermented for three years with all-natural ingredients and 12 different strains of friendly bacteria. Not grown in a lab with a single culture medium, Dr. Ohhira’s process simulates the environment in the human gut. Natural fruits and vegetables are added seasonally to feed the bacteria which the bacteria process and the result at the end of 3 years is strong and effective probiotics and metabolites, what we call postbiotic metabolites.

THE DR. OHHIRA'S ORIGINAL PROBIOTIC capsule contains prebiotics (the fruits and vegetables) with strong and effective probiotic bacteria (12 strains) and postbiotic metabolites that the probiotic bacteria have been producing during three years of fermentation, including vitamins, amino acids, short-chain fatty acids (SCFAs), immune system-enhancing compounds, detoxifying agents and many other beneficial substances which support digestive function, whole health and improve the pH of your colon.

THE CAPSULE is acid resistant to ensure that the contents are delivered to the small intestine and colon. It is also breathable and lets oxygen in, which together with the prebiotics allows the live active probiotic bacteria to stay alive for years at room temperatures, ready to go to work in your gut. This is an expensive way to create a probiotic supplement and it is the best way. A supplement carefully crafted over 3 years to benefit your digestive system. Expensive but worth it.

Bioavailable Zinc Complex – Molecularly bound with the amino acid methionine, our patented zinc chelate is designed to be more easily utilized by the body for immune health support and more. We've added Vitamin B6 for additional support.

Your Daily Defense – Involved in more than 100 enzymatic reactions in the body, zinc may play a vital role in your immune system and your overall health. This important trace mineral may help support immune function and a healthy endocrine system.

Fresh & Radiant – An excellent skin supplement, zinc may help support the normal structure of cells for smooth, vibrant skin and a healthy appearance.

DRINK DAILY FOR YOUR HEALTH: Drinking our Gel Aloe Vera juice daily can help support immune and gut health, balance stomach acid, lower toxins in your body that prevent cellular absorption, plus overall muscle, and joint health.

IMPROVE SUPPLEMENT ABSORPTION: The aloe vera plant has 18 amino acids plus multiple vitamins and studies prove the value of aloe vera improving the absorption of supplements. Aloe vera drink can also soothe occasional muscle and joint discomfort.

BOOST DIGESTIVE HEALTH: In addition to sustaining and promoting regularity, organic juice from the aloe vera plant can aid in the maintenance of your overall digestive system's health and balance the pH of the stomach.

NATURAL INGREDIENTS - Nature's Sunshine has been known for Quality, Service, and Integrity since 1972 and produces L-Lysine in the USA to ensure it exceeds strict quality controls.

STRUCTURAL SYSTEM SUPPORT - L-Lysine, amino acids for women and men, contribute to proper growth by helping form collagen which comprises bone cartilage and connective tissues.

STRENGTHEN CIRCULATION - Lysine can be helpful in lowering triglycerides and acts an anti-aging factor, contributing to the structural repair of damaged blood vessels.

Essential Amino: May help support healthy cognitive, immune system, and gastrointestinal function

Structural Support: Plays important role in helping to support the maintenance of collagen & elastin

Precursor: L-Lysine is also a precursor to other essential, free-form amino acids like L-Carnitine

Zap It with Zinc – Required by more than 70 enzymes as a cofactor, zinc plays a vital role in immune system support and your overall health. Our Tri Zinc complex provides 50mg zinc from zinc citrate, chelated zinc and zinc picolinate for three times the immune health support.

Rev It Up – Important to protein synthesis, a zinc supplement may also help with the proper metabolism of carbohydrates, proteins and fats for healthy energy and may support taste acuity and reproductive health.

ActivTab Technology – Our Tri Zinc tablets are guaranteed to disintegrate within 30 minutes according to USP standards, so the zinc is readily absorbed and goes to work quickly.

Multiple Vitamins; Solgar Formula VM-75 contains vitamins A, B1 (thiamin), B2 (riboflavin), B3 (niacin), B6, B12, C, D, E, folic acid, pantothenic acid, and biotin

Chelated Minerals; Chelated minerals are minerals that have been combined with amino acids to form “complexes”; Formula VM-75 contains magnesium, calcium, copper, iron, zinc, iodine, manganese, selenium, potassium & molybdenum

Antioxidant & Immune Support; Solgar Formula VM-75 contains beneficial antioxidants, which can help to fight free radicals and support a healthy immune system

IMMUNE SUPPORT - Zinc is an essential mineral that works to support the body's natural defense system. NaturesPlus Mega Zinc supplies Zinc as an amino acid chelate - making it easier for your body to absorb and utilize.

HIGH POTENCY - Each tablet of Mega Zinc supplies 100 mg of Zinc, more than 6 times your daily value. It comes in a special base allowing for a gradual, sustained release of the ingredients over time.

ADDITIONAL BENEFITS - Zinc supports a variety of important functions, including digestion and metabolism of important minerals, vitamins, and carbohydrates.

Chelated Complex: Zinc citrate, picolinate & amino acid complex designed for enhanced absorption

Immune Support: Zinc may help support healthy immune system and cellular function

All-Around Wellness: Zinc plays an important role in metabolism, digestion, skin health & more

Amino Acid Support – L-Arginine is a powerful amino acid that supports your muscle mass and blood flow and could improve your overall cardiovascular health. It helps your body produce Nitric Oxide, which is necessary for proper circulation.*

Power Blend – Doctor Recommended Cardio Heart Health is formulated with L-Citrulline, Folic Acid, Magnesium, Selenium, and Vitamins B12, C, D, E, K, and others to support whole-body health and ensure a proper vitamin and mineral balance.*

Arginine Therapy – L-Arginine is increasingly being studied as a remedy to various health disorders. It may help ease migraines, regulate cholesterol levels, and support the immune system. Check with your doctor for recommendations and drug interactions.*

➕ Source of Antioxidants - N-Acetyl L-Cysteine, or NAC supplement, is a great source of antioxidants, which protects cells from free radical damage.* This makes it an important part of overall health and well-being.* In addition to its antioxidant content, our NAC powder, or NAC supplement, is pure without any fillers.

✔️ Supports Lung Health - N-Acetyl L-Cysteine powder, or NAC supplement, is an amino acid supplement that may support lung health or respiratory health. This powerful antioxidants supplement may helps support lung function and it's health, making it a great way to support overall health and wellness.*

✔️ Promotes Healthy Mood - N-Acetyl L-Cysteine, in NAC 600mg powder, may be a supplement for mood health.* In addition, NAC suppelments may help supports healthy balance of neurotransmitters, and promoting a sense of calm and well-being.* Add NAC powder into your diet or any healthy regimen for a healthy and balanced mood.*

8 DAILY GREENS: Apple gummies made from 8 super greens including Spinach, Wheatgrass, Kale, Blue Green Algae, Spirulina, Aloe Vera, Chlorella & Barley Grass

ENERGY & IMMUNITY : These real greens gummies provide natural energy, antioxidants & immune strength - an easy source of additional greens to your daily regimen

WORLD'S FIRST: The World's First real greens gummies; 4 gummies contain as much Vitamin B6 as 16 cups of Raw Spinach, Riboflavin as 10 cups of Cabbage, Pantothenic Acid as 8 cups of Broccoli, Zinc as 4 cups of Beet Greens & Vitamin C as 4 Kiwis

Extra Strength Vegetarian Tablets: Bronson L-Lysine Extra Strength provides a superior 1000 MG of high quality L-Lysine per vegetarian tablet. L-Lysine is an essential amino acid that is obtained through foods and supplementation.

Immune & Collagen Synthesis: L-Lysine helps to support a healthy immune system and promote collagen synthesis.* L-Lysine also helps to maintain healthy production of the amino acid L-Arginine.*

Superior Quality: Laboratory tested GMO-Free, Gluten-Free and Soy-Free. Bronson products are in-house tested and carefully manufactured by trained professionals in our state-of-the-art facility that is located in Hauppauge, New York.

DESIGNED FOR: L-Glutamine is the most abundant free amino acid in the body and is highly concentrated in the brain, intestinal mucosal cells, immune cells, skeletal and smooth muscles.

MUSCLE SUPPORT: In muscle tissue, the concentration of free glutamine appears to influence whether muscles will be broken down or built up. Maintaining high blood levels of glutamine inactivates glutamine synthetase so your body does not break down muscle tissue.**

DIGESTION AND IMMUNE HEALTH: Because the cells in our gut have a high turnover rate, glutamine is used to help build strong cell surfaces for better digestion and absorption. In addition, glutamine is also used as a fuel source for immune cells in response to foreign bodies.

Same trusted quality with a brand new look! Packaging may vary

Helps Maintain Muscle Tissue*

Informed-Choice is an adulteration monitoring program through LGC that conducts monthly blind batch testing of registered products at the retail level and posts updated results on their website. The Informed-Choice logo indicates that these products have been tested for, and certified to be free of, banned substances through the Informed-Choice certification program.

Multiple Vitamins & Antioxidants; Solgar Formula VM-75 contains vitamins A, B1 (thiamin), B2 (riboflavin), B3 (niacin), B6, B12, C, D, E, folic acid, pantothenic acid, and biotin

Chelated Minerals; Chelated minerals are minerals that have been combined with amino acids to form “complexes”; Formula VM-75 contains magnesium, calcium, copper, iron, zinc, iodine, manganese, selenium, potassium & molybdenum

Antioxidant & Immune Support; Solgar Formula VM-75 contains beneficial antioxidants, which can help to fight free radicals and support a healthy immune system

Fermented L Glutamine Supplement: Jacked Factory's L-Glutamine powder features unflavored, vegan, fermented L-Glutamine that mixes instantly in virtually any liquid! Each serving provides 5000mg of pure glutamine to help athletes, bodybuilders, gym-goers, and fitness enthusiasts alike.

Support Post Workout Recovery, Muscle Soreness, and Digestion Health: L-Glutamine is an amino acid that plays a multitude of roles throughout the body. It's a crucial building block of skeletal muscle tissue and necessary for replenishing muscle glycogen before, during, and after exercise. L-Glutamine supplementation promotes muscle recovery, supports immune function, and maintains gastrointestinal tract integrity.

Quality L Glutamine Powder: Glutamine is rapidly depleted after intense exercise, making it a crucial amino acid supplement for those who train regularly. Our high-quality L Glutamine powder is rapidly absorbed, gentle on the stomach, and easy to mix with other powdered supplements.

ESSENTIAL AMINO ACID: L-Lysine is an essential amino acid involved in protein metabolism, growth and development, and normal tissue maintenance and repair.*

HEALTHY TISSUE AND IMMUNE SUPPORT: L-Lysine supports a healthy immune system and the body’s natural immune defense. It also plays a role in calcium absorption, supports connective tissues, and can help with cold sores.*

PURE FORMULA: Bestvite L-Lysine contains no stearates, is non-GMO, gluten-free, vegan, and comes in an additive-free capsule. Each capsule contains 500 mg of L-Lysine.

FULL SPECTRUM MULTIVITAMIN—Enjoy a healthy dose of premium nutrition that offers 32 vitamins, minerals and phytonutrients, PLUS more than 32 fruit, vegetable, and plant-based ingredients, including Zinc, Vitamin D, Elderberry, Green tea, Aloe vera, CoQ10, Amino acids, Protein and much more. This liquid multivitamin and mineral supplement delivers daily nourishment in a liquid fast, bio-ready design—no messy powders or hard-to-swallow pills.*

HEART HEALTH SUPPORT—The HeartPro blend contains D-Ribose, L-Carnitine, Malic Acid, CoQ10, and mixed Tocopherols to support proper function of the cardiovascular system, including cholesterol health, homocysteine levels, blood pressure and energy production.*

IMMUNE HEALTH—A potent blend of essential vitamins and minerals daily immunity support. Vitamin C, Zinc, Elderberry, Vitamin D. A pleasing nature-based low sugar fruit flavor.*

HIGH POTENCY ZINC - NaturesPlus Zinc 30 mg contains 200% of your daily recommended intake of zinc - ensuring you have enough of this essential mineral every day.

IMMUNE SYSTEM SUPPORT - Zinc is known for its immune boosting properties, but is also essential for wound recovery, blood clotting, and tissue development.

MAXIMUM ABSORPTION - Our Zinc is in the form of amino acid chelate, ensuring maximum absorption and mineral usage throughout the body.

Vitamin B Complex: Vitamin B Complex vitamin supplement with optimal amounts of B1, B2, B4, B5, B6, B7, B9, & B12 vitamins

B Vitamins Complex: Powerful & natural energy support; stress support; immune support; & nervous system support

B Complex Plus More: The Vitamin C, Folic Acid, & Biotin in our B-100 Complex helps immune support & energy support & more

PROMOTE GUT HEALTH - Glutamine is essential to the health of the immune system and the digestive tract. In the gut, it promotes the health and proper functioning of mucosal cells, which are necessary for normal healing and repair. *

SUPPORT MUSCLE REPAIR - Glutamine also supports optimal muscle growth and strength and has been shown to be particularly useful in helping to maintain muscle tissue in already healthy individuals.*

ANTIOXIDANT ACTIVITY - Increases production of glutathione, the body's main antioxidant.*