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Read more Proper nutrition keeps the body's defenses healthy. Thorne offers general immune support formulas in addition to more targeted formulas – for respiratory health, urinary tract health, and allergy support.* Thorne's immune support supplements include nutrients like vitamins C and D, botanicals like berberine and olive leaf, flavonoids like quercetin, and multi-ingredient specialty formulas. Some of these formulas are offered in liquids and powders for ease and convenience of supplementation for all ages, including children. Read more When the highest standards have been met, Thorne creates higher ones. Sourcing Exceptional Ingredients We develop better standards for higher quality ingredients. Thorne cares deeply about where our ingredients come from. We partner only with suppliers whose practices emphasize quality, science, and responsibility. Better ingredients means better potency, absorption, and digestibility - and ultimately better health. Manufacturing the Right Way We manufacture our own products to ensure full supply chain transparency. For more than 30 years, we have invested in clean manufacturing practices. We refuse to use ingredients that can inhibit absorption. We perform our final production in the United States. Our Charleston, SC facility is third-party certified. Four Rounds of Testing We run four rounds of testing for each of our products. We have invested in two state-of-the-art in-house laboratories that allow us to conduct four rounds of testing, while most competitors test only one or two times. We test our raw materials, in-process batches, finish products, and product stability for each product. Thinking Sustainably We're thinking sustainably to protect our environment. We believe the environment should never be compromised for the sake of business gain. At Thorne, we believe that doing our part to protect the environment and its most valuable resources goes hand in hand with our product quality standards. Read more
Immune Function: Echinacea helps activate natural killer cells*
Berberine: Coptis contains berberine, which helps inhibit the adherence of foreign organisms to the lining of the GI tract and bladder*
WBCS: Astragalus stimulates the production of white blood cells*
Respiratory: Schisandra has a long history of use in Chinese medicine for supporting immune function, especially in the respiratory tract*
Free From: Every Thorne product is made with the purest possible ingredients - without gluten or other major allergens (eggs, tree nuts, peanuts). This product also contains no soy, dairy, yeast, shellfish, or fish.
I take immediately at the first sign of flu or cold and to calm down cytokine flares. Taking three capsules two times every day until symptoms subside. Usually takes two days to start feeling much better but I continue to take it and slowly reduce the amount depending on what I am battling. It's especially effective if taken at the first sign of flu or cold. Thank you, Thorne!I am the end of second month and I honestly can't say anything about this product. I don't feel any difference in how I feel. If this doesn't change, I'll stop taking it after the third month. It's pricy and the benefits are kind of iffy. I wish I could brag about my energy level or feeling better, but I can't. I will change the review if there are any changes.I work for a holistic vet clinic where my boss doles this stuff out to dogs with hard-to-resolve skin issues but she suggested it to me for a recurrent tonsillitis I've been struggling with for MONTHS while I wait for my ENT appointment that's still 3 weeks away. This stuff works!Instead of having to do another course of amoxicillin which destroys my underpants ecosystem and gives me secondary skin infections, I've been using this stuff every time my tonsils misbehave and they settle back down. it works every time! It's also helped my husband resolve multiple colds (he's a teacher.)I suspect I'll have to get my tonsils taken out and you better believe I'll be using this stuff to stave off post-surgical infection as soon as I can swallow.I’m a mother of two young children and a second grade teacher and I’m always catching colds and sinus infections. I’ve tried so many different things to help my immune system (you name it-I’ve tried it.) I’m now on my 2nd bottle of this stuff and recommending it to everyone I know. Since I started taking this product I’ve gone on two airplane trips and overcome 3 illnesses that have come through my household when I’m always they one that catches these things.I never write reviews on here, but I’m really impressed with this stuff!! I take 3 a day (1 dose) for preventative but when I’m around sick people or feel run down, I’ll up it to 2 or 3 doses. In addition to fighting off colds, I also feel as though my allergies have been better lately as well. Not sure if it’s due to this product or what - but I’m feeling overall stronger and healthier!My husband & I are both struggling with a really bad head cold. Horrible sinus headache, fatigue & gross green mucus. I started taking this 2 days ago & am feeling about 75% better today, while he is not taking it & is getting worse. I have an immune system deficiency that prevents me from fighting upper respiratory infections as well as other people, so I am usually WAY worse. I can only attribute the speedy recovery to taking this supplement. Will definitely be stocking up on this.we like it due to its non prescriptive and effectivenessI LOVE LOVE LOVE PHYTOGEN !It’s the best thing I take for my colds, allergies, asthma, fluid retention, inflammation, sleeplessness, energy and overall immune system. I hope and pray that Thorne will NOT stop this product. Ever.God bless Thorne.Amazon, thank you for carrying it.Definitely works but if you're real sick like with a sinus infection or something you've got to take a bunch for it to do its job. Like when I have a sinus infection I'll usually take 4 every 2 hours or so when im not asleep for a couple days and it will knock it right out! No antibiotics needed!!Definitely recommend this but taking a lot will send you to the bathroom so make sure you're upping your water intake as well.