Last update
5/2/2025

Overview

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 68 Reviews
8.5
Supplement Facts
Serving Size:  3 Tablets
Amount Per Serving
%DV
Calories
5
Total Carbohydrate
2 g
< 1%†
Vitamin A (as 80% retinyl acetate and 20% beta carotene)
1,500 mcg
167%
Vitamin C (ascorbic acid)
1,000 mg
1,111%
Vitamin D (as ergocalciferol)
10 mcg
50%
Zinc (as zinc bisglycinate)
15 mg
136%
Selenium (as L-selenomethionine)
25 mcg
45%
Systemic Immunity BlendEchinacea purpurea (stem, leaf, flower), Astragalus (root), Olive (leaf)
455 mg
**
Circulatory BlendGarlic (bulb), Cayenne Pepper (fruit)
350 mg
**
Cellular Immunity BlendIP-6 (Inositol Hexaphosphate) (from Calcium Magnesium Phytate), Maitake (Grifola frondosa) Mycelial & Primordia Biomass, Reishi (Ganoderma lucidum) Mycelial & Primordia Biomass, Shiitake (Lentinula edodes) Mycelial & Primordia Biomass, Yamabushitake (Hericium erinaceus) Mycelial & Primordia Biomass
315 mg
**
Digestive BlendArabinogalactan (from Larix laricina), Oregon Grape (Mahonia aquifolium) (root and stem), Goldenseal (Hydrastis canadensis) (aerial parts), Fructooligosaccharides
290 mg
**
Respiratory BlendFenugreek (seed), Horehound (herb), Thyme (leaf), Elecampane (root)
240 mg
**
Eleuthero (root)
65 mg
**
Guggul Extract (gum resin)
65 mg
**
Rosemary (leaf)
65 mg
**
Gotu Kola (stem, leaf)
50 mg
**
Plantain (leaf)
20 mg
**

Most Useful Reviews

9
Effective against flu
97 people found this helpful
Quick and effective. Update July 2021: it has now been THREE YEARS since I have been sick. I no longer take this regularly; however, if I start to feel unwell, I will take it right away, and what was troubling me disappears within a day or less. Update January 2021: no colds, no flu, no anything. This stuff works. Update March 2020: I've continued to take these and have remained cold and flu-free since the original review. I ordered these, took two the first day, and felt much better the next day. Within two more days, everything was completely gone. I will now be taking a daily dose to combat colds before they can even happen.
Read More
9
Avoids flu sickness
44 people found this helpful
Most important item in my medicine closet. My whole life, I have been prone to sickness, especially flu. Since starting these two years ago, I've rarely been sick. When I feel unwell, I take six a day, and I seem to bypass illness completely. I’m the only one at work who has avoided the flu this season, and I attribute this to these vitamins.
Read More
7.5
Lupus, flu maintenance
43 people found this helpful
A Godsend! With Lupus and on peritoneal dialysis, my immune system is compromised. I catch colds easily, taking weeks to recover. A few years ago, I was advised to take Systemwell, and it has been a blessing! I take it daily, especially during flu season. If I feel symptoms approaching, I increase to 6 a day until they subside. Systemwell is truth! I keep it stocked and will order more soon.
Read More

User Reviews

USERS' SCORE
Good
Based on 68 Reviews
8.5
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9
Effective against flu
97 people found this helpful
Quick and effective. Update July 2021: it has now been THREE YEARS since I have been sick. I no longer take this regularly; however, if I start to feel unwell, I will take it right away, and what was troubling me disappears within a day or less. Update January 2021: no colds, no flu, no anything. This stuff works. Update March 2020: I've continued to take these and have remained cold and flu-free since the original review. I ordered these, took two the first day, and felt much better the next day. Within two more days, everything was completely gone. I will now be taking a daily dose to combat colds before they can even happen.
Read More
9
Avoids flu sickness
44 people found this helpful
Most important item in my medicine closet. My whole life, I have been prone to sickness, especially flu. Since starting these two years ago, I've rarely been sick. When I feel unwell, I take six a day, and I seem to bypass illness completely. I’m the only one at work who has avoided the flu this season, and I attribute this to these vitamins.
Read More
7.5
Lupus, flu maintenance
43 people found this helpful
A Godsend! With Lupus and on peritoneal dialysis, my immune system is compromised. I catch colds easily, taking weeks to recover. A few years ago, I was advised to take Systemwell, and it has been a blessing! I take it daily, especially during flu season. If I feel symptoms approaching, I increase to 6 a day until they subside. Systemwell is truth! I keep it stocked and will order more soon.
Read More
9
Prevents flu illness
27 people found this helpful
Most effective vitamin I've ever taken. These vitamins have significantly improved my health since starting in January 2013. Before, I had frequent colds, flus, and bronchitis. Now, I've been well throughout 2013! When I felt a bit unwell, I took the recommended intensive dose, had some herbal tea, and felt much better the next morning. They are large, but don’t let that deter you; these are truly effective!
Read More
9
Supports flu recovery
14 people found this helpful
Absolute Miracle!!! I have a terrible immune system and often get sinus infections and any bacterial infection quickly. I bought these on a whim and take three a day for a boost when sick. After running out for two months, I was hit with a sinus infection, flu, and bacterial infections all at once. Clearly, I need these in my life and will be ordering again!
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Frequently Asked Questions

9
Quick relief
3 people found this helpful
Nature's Way is one of the best remedies for cold and flu I’ve tried. At the first signs, I take two tablets before bed and feel good in the morning. My whole family uses it, and I’m reordering. Thanks, iHerb!
9
Prevents flu effectively
1 people found this helpful
Excellent product! I have been taking SystemWell Ultimate Immunity for over 10 years and highly recommend it. It offers great value for money considering all the ingredients, and it keeps colds and flu at bay. At the first sign of a sore throat or a cold coming on, I increase the dosage, and a cold never materialises!
9
Rapid recovery
6 people found this helpful
Klasna piece influenza and cold! It works well for a cold; taking 3 pieces twice a day helps me recover in two days without complications—it's a lifesaver in winter!
7.5
Must be cautious
2 people found this helpful
It works well if taken at the early stages of illness or as a preventive measure. It helped me stay on my feet while my family suffered from the flu. However, be cautious if you have stomach issues as it can irritate due to pepper.
9
Significantly improved wellbeing
1 people found this helpful
It works on many levels! Last year, I was bedridden with fever and flu-like symptoms under the same weather conditions. Now, I feel much better and haven’t had any feverish episodes. When I feel something coming on, I double the dose and I'm back on my feet. I take one daily and up to three when unwell. I also bought it for my parents and they are just as pleased as I am.
7.5
Boosted immunity noted
Not getting sick at all anymore! I have quite a poor immune system, experiencing constant colds and flu, but since taking these tablets, I haven't had a cold in four months. I truly feel the difference. During this period (autumn and winter), I would normally have been ill several times. The pills are large to swallow, but it’s a small price to pay for good health.
9
Minimises severity
I've been taking Ultimate Immunity for about ten years, and I'm convinced I experience fewer colds and flu bugs since I started. When I do get a cold or flu, the severity is minimised, and the length of illness is shortened.
9
Flu relief
1 people found this helpful
I love this product and have taken it once a day for over a year. When I feel flu-like symptoms during winter, I take it three times a day. It seems to do the trick.
9
Impressive results observed
1 people found this helpful
Love this supplement! I started taking it last year during the cold and flu season. I did not get sick at all last year, while in previous years I suffered for weeks with coughs and colds. I truly believe this supplement has helped strengthen my immune system. I will continue taking it every year!
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