Top 10 Best-Selling Supplements at iHerb 2023

iHerb is one of the most popular online retailers of dietary supplements, offering a wide range of products from reputable brands. With so many supplements to choose from, it can be overwhelming to know which ones are worth investing in. To help you make an informed decision, we’ve compiled a list of the top 10 best-selling supplements at iHerb in 2023.

1. California Gold Nutrition LactoBif Probiotics

Probiotics are beneficial bacteria that support digestive health and boost the immune system. This product by California Gold Nutrition contains 30 billion CFUs (colony-forming units) of a blend of 10 probiotic strains.

2. Life Extension BioActive Complete B-Complex

The B vitamins play a crucial role in many bodily functions, including energy metabolism, nerve function, and DNA synthesis. This product by Life Extension contains a comprehensive blend of B vitamins, including the active forms of folate and B12.

3. NOW Foods Apple Pectin

Apple pectin is a type of soluble fiber that can promote digestive health and support healthy cholesterol levels. This product by Now Foods contains 700 mg of apple pectin per capsule.

4. California Gold Nutrition Omega 800 Fish Oil

Omega-3 fatty acids are essential fats that support cardiovascular health, brain function, and joint health. This product by California Gold Nutrition contains high-quality fish oil in the triglyceride form, providing a total of 1,000 mg of EPA and DHA per serving.

5. NOW Foods Probiotic-10

Another probiotic product from Now Foods, this formula contains 10 probiotic strains and 25 billion CFUs per capsule. It also includes prebiotic fibers to support the growth and activity of the probiotics.

6. California Gold Nutrition Omega 800 Fish Oil

This high-potency fish oil product by California Gold Nutrition contains 800 mg of EPA and DHA per capsule in the triglyceride form, which is highly bioavailable and easy to absorb. It also undergoes molecular distillation to remove impurities.

7. Doctor’s Best High Absorption Magnesium

Magnesium is an essential mineral that supports nerve function, muscle function, and bone health. This product by Doctor’s Best contains magnesium in the form of magnesium glycinate, which is highly absorbable and less likely to cause digestive upset.

8. MRM Nutrition Cordyceps CS-4 Strain

Cordyceps is a type of mushroom that has been used in traditional Chinese medicine for centuries to support respiratory and immune health. This product by MRM Nutrition contains a standardized extract of the Cordyceps CS-4 strain.

9. 21st Century Calcium Magnesium Zinc + D3

Calcium, magnesium, and zinc are essential minerals that support bone health, muscle function, and immune function. This product by 21st Century also includes vitamin D3, which helps the body absorb calcium.

10. California Gold Nutrition Gold C Review: A High-Quality Vitamin C Supplement

Vitamin C is a powerful antioxidant that supports immune function and collagen synthesis. This product by California Gold Nutrition contains USP grade vitamin C in the form of ascorbic acid, which is easy to absorb and utilize by the body. With 1,000 mg of vitamin C per serving, this supplement can help boost your immune system and protect against free radicals.


Supplements can be a great way to support your overall health and well-being. The top 10 best-selling supplements at iHerb offer a variety of benefits, including immune support, digestive health, and cardiovascular health. As with any supplement, it’s important to consult with your healthcare provider before starting a new regimen. Additionally, be sure to follow the recommended dosage instructions and store supplements properly to ensure their effectiveness.


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