Page 1 - Reviews - 21st Century, Antioxidant, 75 Tablets - iHerb
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Customer Ratings & Reviews

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4.7
Based on 1,823 ratings
1,409
251
122
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17
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What customers say
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English (UK)
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mohmmad
Silver
Posted on Nov 4, 2025
Saudi Arabia
183
1
5
161
Verified Purchase
I tried the Antioxidant Century supplement and honestly, I loved it! It contains a powerful antioxidant formula that protects the body from free radicals and boosts immunity. I noticed a difference in my energy levels and the health of my skin and hair. I will continue taking it and will share the results in detail later.
Auto-translated from Arabic
Nastino4ka
Gold
Posted on Jul 8, 2026
Ukraine
406
0
0
49
Perfectly
Verified Purchase
This antioxidant complex from 21st Century is a great choice for those looking for affordable and high-quality body support. The tablets are easy to take, they do not cause stomach discomfort and give a feeling of slight improvement in overall well-being after a few weeks of regular use. This is a simple but effective way to take care of your immunity and protect against oxidative stress, so I am satisfied with the results and plan to continue buying this complex.
Auto-translated from Ukrainian
Pharmacist-Roaa
Silver
Posted on Jan 11, 2026
Jordan
177
37
10
709
Excellent and reasonably priced
Verified Purchase
This is a very good antioxidant product. The package contains a good quantity (75 tablets) and will last a long time. The ingredients are clear, and the tablets are easy to swallow with no unpleasant taste or smell. I noticed that it's suitable for daily use and doesn't cause any stomach upset. The quality is excellent compared to the price, the packaging was secure, and the product arrived in excellent condition with a long shelf life. I see it as a practical option for anyone looking for an antioxidant supplement at a reasonable price, and I will definitely repurchase it.
Auto-translated from Arabic
VladimirUAWIN
Silver
Posted on Apr 11, 2026
Ukraine
227
0
0
69
A high-quality antioxidant
Verified Purchase
A complex dietary supplement containing vitamins A, C, and E and minerals (selenium, zinc, copper, and manganese). The formula is designed to neutralize free radicals, protect cells from oxidative stress, and support immunity and skin health. Often available in 75-tablet packs.
Auto-translated from Russian
Meem27
Posted on Feb 28, 2026
Saudi Arabia
67
0
0
47
Distinguished
Verified Purchase
I bought two bottles and it was great for inflammation, hair loss, and overall hair health because it's beneficial for stress, and stress damages hair. I would repeat the experience, but I wanted to try another brand.
Auto-translated from Arabic
TaBoro
Gold
Posted on Feb 24, 2026
Moldova, Republic of
413
0
52
550
very good
Verified Purchase
A good combination of ingredients, brand quality, the tablet size is quite acceptable for consumption, no side effects were noted, we took it for the purpose of removing free radicals, there was contact with radiation, so this composition was the most suitable
Auto-translated from Russian
iHerbCustomer
Posted on Sep 20, 2025
Georgia
57
0
2
10
Excellent! 👍 After 30, I started taking antioxidants and I feel even better than at 20.
Verified Purchase
The capsules are large and red. The ingredients and quality are excellent. I order from this company; the price is reasonable and the packaging is large. Why do women need antioxidants, especially after 30? Vitamin E (tocopherol) inhibits the oxidative degradation of lipids, which helps keep cell membranes intact and cells more actively absorb oxygen. It slows skin aging and boosts the immune response. Vitamin A (retinol) is involved in the functioning of visual cells, nerve endings, and mucous membranes. It lowers blood cholesterol levels and strengthens bones and teeth. It is involved in the synthesis of proteins and lipids and is responsible for healthy skin. Vitamin C protects nerve cells from free radicals and stimulates brain and immune function. It is used in cosmetics because it restores damaged DNA in dermal cells, stimulates collagen synthesis, and evens out complexion. Selenium is not a direct antioxidant, but it is a component of enzymes with antioxidant properties. It is the foundation of anti-cancer defenses. It strengthens the external defenses of cells and is responsible for the functioning of the heart, lungs, and immune system. Zinc is a component of enzymes that restore cellular integrity. It regulates the absorption of other vitamins and minerals and maintains proper central nervous system function. It is essential for the formation of formed elements of the blood.
Auto-translated from Russian
iHerb Customer
Posted on Sep 21, 2025
United States
35
0
0
2
Verified Purchase
I order a lot of vitamins, products, dietary supplements on iHerb. All products are very high quality and useful when taken in the correct dosage and duration of use!!! I am very pleased that I found this site for myself. Now I order only on iHerb and I recommend it to everyone!!! Delivery is always fast, the packaging comes in good condition without damage.
Auto-translated from Ukrainian
od-zlatovlaska
Posted on Sep 14, 2025
Ukraine
94
1
1
127
that's what you need!
Verified Purchase
I take it in the morning, after breakfast. I read the ingredients, I think everything is very useful. In terms of my well-being, I notice a surge of energy and improved brain activity. I got over the effects of covid easily, and recovered quickly. I think it's thanks to this antioxidant complex.
Auto-translated from Russian
iHerb Customer
Posted on Aug 27, 2025
Taiwan
21
0
0
1
The particles are of moderate size, no odor, and the price is reasonable
Verified Purchase
I bought it to restore physiological functions after high-intensity exercise, for anti-oxidation and to prevent oxidation. The reviews are all very good. The advantages are that the particles are of moderate size, there is no strange smell, and the price is reasonable. I use it before going to bed at night and I am satisfied so far.
Auto-translated from Chinese Traditional