10 Best Optimal Immune Support of December 2025

• Supports healthy immune system function
• A powerful antioxidant
• Provides 250 mg of vitamin C
• Gummies with a tangy orange flavor
• Potency and quality guaranteed
• During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.

Carlson

• Exceptional Overall Immune Support: Feel great from within with natural protection that boosts your immunity. Elderberry is rich in antioxidants that protect your cells from free radical damage. Healthy cells = healthy you! The generous amount of nutrients in our Elderberry capsule gives exceptional immune & respiratory support, promotes collagen production, protects your heart, and enhances overall health so you can be at your best all year round!
• Powerful Combination to Go Beyond Limits: Do you want to stay active and healthy all the time? Do you want a supplement that can support your body’s natural defenses against common respiratory issues? Do you want an effective way to boost your immune health? With the powerful combination of vitamin C and zinc we’ve put together with elderberry, you can go beyond your limits with a stronger immune system! Live your life to the max with the optimum protection from our Elderberry supplement.
• Impressive Elderberry Blend: We’ve included 825mg of 4 potent herbal ingredients - elderberry fruit, oregano leaf, olive leaf, and garlic bulb - all known to have anti-inflammatory properties and also support immune and cardiovascular health. The Respiratory Support Complex in our supplement, composed of natural herbal extracts, gives your respiratory system the freedom to function at its best, helps relieve sinus problems, and reduces inflammation. Enjoy every day feeling your best!
• Pure Quality, Optimal Results: At Purely Optimal, our mission is to help people live longer, happier, and healthier lives. Each product is made in the USA in a GMP certified facility and is 3rd party lab tested. We stand behind our product’s safety and quality and if you’re not satisfied with the product for any reason, let us know and we’ll make it right.
• Helping Families, Changing Lives: When children are given the chance to grow up healthy, they have the chance to dream; to live with the potential to chase every opportunity because they’re physically and mentally fit. Every purchase of a Purely Optimal product contributes to life-saving vitamins and minerals for children and mothers in need through our partnership with Vitamin Angels. By choosing Purely Optimal, you’re choosing to make a difference!

Purely Optimal

• Supports healthy immune system function
• Promotes teeth and gum health
• Non-acidic vitamin C that's gentle on the teeth and stomach
• Provides 500 mg of vitamin C
• Potency and quality guaranteed

Carlson

• WHY OMEGA-3s - Research shows that the essential fatty acids EPA & DHA in fish oil support heart, brain, eye & immune health. Omega-3s may also help support a healthy mood.
• PERFECT FOR THOSE NEW TO FISH OIL - Nordic Naturals Omega-3 provides a generous serving of omega-3s in a great-tasting liquid, and meets the daily recommended dose suggested by the American Heart Association to support a healthy heart.
• BETTER ABSORPTION, BETTER TASTE, NO FISHY BURPS - All of our omega-3 fish oils are offered in the triglyceride molecular form (the form naturally found in fish) for optimal absorption. Omega-3 has a great lemon taste.
• PURITY GUARANTEED - Every batch of Nordic Naturals fish oil is crafted from fresh, wild-caught, omega-rich fish. We are committed to using only non-GMO, gluten- & dairy-free ingredients with no artificial colors, flavors, or preservatives.
• ETHICAL INNOVATION - Nordic Naturals has always been at the forefront of sustainable & ethical practices in the natural products industry. Through science & innovation, we are committed to delivering safe, effective nutrients for optimal wellness.

Nordic Naturals

• Immune Support – Optimal Glutathione Plus may help support a healthy immune system. Glutathione is a necessary nutrient for optimal functioning immune cells. Glutathione, is also an important antioxidant that our bodies require.*
• Free Radical Defense – Each capsule contains 100 mg of S-Acetyl-L-Glutathione, a master antioxidant that supports the body's healthy response to oxidative stress and free radicals. Optimal Glutathione Plus may help maintain normal detoxification pathways.*
• Promote Internal Health – Suitable for vegans and vegetarians, Optimal Glutathione Plus may support healthy respiratory and immune systems and a healthy liver. Acid-resistant capsules help ensure the intact delivery of supplements to the lower digestive tract.*
• Quality Health Supplements – Seeking Health Supplements are manufactured according to strict standards to ensure product purity and quality. Seeking Health Optimal Glutathione Plus is free of artificial colors and flavors and is allergen-friendly.
• Support Genetic Health – Seeking Health provides high-quality, scientifically-formulated health supplements to optimize health. In a world packed with toxins and stress, we believe that gene health starts with pure, bioavailable, easy-to-use supplements.

Seeking Health

• Single-serving, fast-acting power shots for optimal immune support.
• With concentrated elderberry, vitamin C and vitamin E.
• Includes a powerful 10,000 IU vitamin D and 1050mcg vitamin K per shot to support a healthy immune response.*
• Typical Elderberry and vitamin C products have poor bioavailability. Liposomal technology has been found to significantly enhance the absorption of these nutrients.*
• Can be taken for regular or intensive use as directed by your healthcare practitioner.

Quicksilver Scientific

• Optimal Immune Support; Clinical Essentials Immune provides the nutrients your body needs to support a strong immune system & stay healthy all year long; The great-tasting, chewable tablet is perfect for those with difficulty swallowing capsules
• Carefully Chosen Ingredients; This powerful blend contains carefully chosen forms of premium vitamins & minerals to help nourish the foundation of your immune system; Includes vitamins A, C, D3, and E, plus zinc & selenium
• A Powerful Combination; Vitamin C is a critical component for healthy immune function; Research suggests that sufficient vitamin D levels support more robust immune systems; Vitamins A & E are also recognized for immune-supporting potential
• Chelated Zinc; The zinc in Clinical Essentials Immune is bonded with an amino acid to help the body absorb the mineral during digestion; This chelated form can be delivered directly into the cells of the body, so it can get to work right away
• The High-Quality Difference; All Terry Naturally products are manufactured to strict Good Manufacturing Practices (cGMP) set by the FDA and are produced with the highest quality ingredients

Terry Naturally

• IMMUNE BOOST FOR PREGNANCY: Expertly formulated herbal tincture provides active support of the immune system while pregnant or nursing. Assists in healthy lymphatic movement and tonification while cleansing the system.
• IMMUNE BOOST FOR PREGNANCY: Expertly formulated herbal tincture provides active support of the immune system while pregnant or nursing. Assists in healthy lymphatic movement and tonification while cleansing the system.
• IMMUNE BOOST FOR PREGNANCY: Expertly formulated herbal tincture provides active support of the immune system while pregnant or nursing. Assists in healthy lymphatic movement and tonification while cleansing the system.
• LIQUID FORM THAT ABSORBS QUICKLY: Liquids are quickly and easily absorbed by the body. They allow you to customize your serving to best meet your needs, they are easy to swallow, and they are convenient for on-the-go use.
• CERTIFIED ORGANIC & WILD-HARVESTED INGREDIENTS: Our staff of highly trained herbalists use only quality-tested gluten-free and non-GMO ingredients to produce our signature formulations that soothe, nurture and support our bodies in the way nature intended.
• COMMITMENT TO SUSTAINABILITY: We make remedies from a love of plants and the earth, so sustainability is very important to us. Each of our suppliers go through an extensive screening process and must meet our high standards for sustainability & quality.
• RADICALLY EFFECTIVE REMEDIES SINCE 1979: We are herbalists, botanists, scientists and naturalists making herbal formulas the old-fashioned way. WishGarden is woman-owned and family run in Colorado.

WishGarden

• WHY OMEGA-3s - Research shows that the essential fatty acids EPA & DHA in fish oil support heart, brain, eye & immune health. Omega-3s may also help support a healthy mood.
• PERFECT FOR THOSE NEW TO FISH OIL - Nordic Naturals Omega-3 provides a generous serving of omega-3s in soft gels, and meets the daily recommended dose suggested by the American Heart Association to support a healthy heart.
• BETTER ABSORPTION, BETTER TASTE, NO FISHY BURPS - All of our omega-3 fish oils are offered in the triglyceride molecular form (the form naturally found in fish) for optimal absorption. Arctic Omega has a great lemon taste.
• PURITY GUARANTEED - Every batch of Nordic Naturals fish oil is crafted from fresh, wild-caught, omega-rich fish. We are committed to using only non-GMO, gluten- & dairy-free ingredients with no artificial colors, flavors, or preservatives.
• ETHICAL INNOVATION - Nordic Naturals has always been at the forefront of sustainable & ethical practices in the natural products industry. Through science & innovation, we are committed to delivering safe, effective nutrients for optimal wellness.

Nordic Naturals

• ⭐EASY TO SWALLOW: while other immune supplements on the market are hard to swallow and have an unpleasant odor, flavor, and aftertaste, our Nutrition Restore Whole Food Optimal Immune System Support supplement capsules are extremely easy to swallow, have no distinct scent or flavor, and have no aftertaste! Our Customers have repeatedly thanked us for creating a high quality, all natural, whole food immune system booster formula that is easy to digest and doesn’t irritate the stomach.
• ⭐INGREDIENT TRANSPARENCY: are you tired of buying other immune system defense supplements, only to find out that they are filled with rice flour, gelatin, and “other ingredients” and fillers that you can’t even pronounce? At Nutrition Restore, WE BELIEVE IN REAL FOOD. Our organic plant-based immune support herb supplement capsules are made with the highest quality botanicals, mushrooms, roots, herbs, and berries blend. We never add any fillers or additives.
• ⭐OUR TEAM OF EXPERTS HAS CRAFTED A POWERFUL FORMULA: our unique formula contains a combination of plants known to have high antioxidant content and detoxifying properties. The ingredients in our immune support goldenseal echinacea capsules have been used in different regions around the world for centuries due to their powerful anti-inflammatory and immunity supporting properties. Our formula is a great immune booster for adults, and provides optimal daily immune defense & respiratory health!
• ⭐TWO MONTH SUPPLY IN EVERY BOTTLE - AN INCREDIBLE VALUE for our powerful Whole Food Optimal Immunity Supplement! Every bottle contains an organic echinacea complex (echinacea purpurea and echinacea angustifolia), organic black elderberry, organic chaga mushroom and organic reishi mushroom, organic acerola cherry, and our proprietary blend containing organic goldenseal root, organic camu camu berry, organic ginger, organic thyme, and organic cayenne pepper.
• ⭐PROUDLY MADE IN THE USA: all of our supplements are manufactured in the US. We are real people who use our own products daily. We have high standards when it comes to what we consume and put into our body, and we want the same for you. That is why all our supplements are made with 100% Natural, Plant-Based, Gluten-Free, Non-GMO ingredients, and don’t contain any fillers! All our supplements are made in a GMP-certified facility in the U.S. and are Third-Party Tested.

Nutrition Restore