Select two or three products to compare.
US iHerb
21st Century
Iron · Tablet
120 count
65 mgIngredient amount per label serving · Iron (as Dried Ferrous Sulfate)
US iHerb
California Gold Nutrition
Other supplements · Softgel
30 count
20 mgIngredient amount per label serving · Pyrroloquinoline Quinone Disodium Salt (PQQ)
US iHerb
21st Century
Melatonin · Tablet
120 count
93 mgIngredient amount per label serving · Calcium (as Calcium Carbonate)
US iHerb
Natrol
Melatonin · Tablet
90 count
1 mgIngredient amount per label serving · Melatonin
US iHerb
Force Factor
Melatonin · Gummy
120 count
10 mgIngredient amount per label serving · Melatonin
US iHerb
NaturesPlus
Magnesium · Tablet
90 count
2 gIngredient amount per label serving · Xylitol
US iHerb
Life Extension
CoQ10 · Softgel
30 count
200 mgIngredient amount per label serving · Ubiquinol (as Kaneka Ubiquinol™)
US iHerb
NOW Foods
Other supplements · Capsule
120 count
1,296 mg Ingredient amount per label serving · Betaine HCl
US iHerb
NOW Foods
Amino acids · Capsule
100 count
1 g (1,000 mg)Ingredient amount per label serving · L-Arginine (Free-Form)
US iHerb
Swanson Vitamins
Other oils · Softgel
100 count
0 gIngredient amount per label serving · Trans Fat
US iHerb
California Gold Nutrition
Astaxanthin · Softgel
120 count
10 mgIngredient amount per label serving · Astaxanthin
(from Haematococcus pluvialis Extract)
US iHerb
Jarrow Formulas
Probiotics · Capsule
90 count
250 mg (5 Billion CFU)Ingredient amount per label serving · Saccharomyces boulardii (an S. cerevisiae Strain)
US iHerb
Life Extension
Other oils · Softgel
60 count
500 mgIngredient amount per label serving · Black cumin [organic nigella oil (seed)]
US iHerb
Enzymedica
Other supplements · Capsule
90 count
240 mgIngredient amount per label serving · Digest Basic® Enzyme Blend
US iHerb
NOW Foods
Other supplements · Capsule
100 count
25 mgIngredient amount per label serving · Vitamin B-6 (from Pyridoxine HCl)
US iHerb
California Gold Nutrition
Vitamin D · Softgel
360 count
125 mcg
(5,000 IU)Ingredient amount per label serving · Vitamin D3
(as D3, cholecalciferol)
US iHerb
Doctor's Best
Magnesium · Capsule
120 count
105 mgIngredient amount per label serving · Magnesium (from 1,050 mg magnesium lysinate glycinate chelate) (Albion®)
US iHerb
Doctor's Best
Digestive enzymes · Capsule
90 count
~450 mgIngredient amount per label serving · Digestive Enzyme Blend
US iHerb
Swanson Vitamins
Other supplements · Softgel
60 count
400 mgIngredient amount per label serving · CardioAid® Phytosterols
(providing a minimum 90% plant sterols) contains beta-sitosterol, campesterol, stigmasterol, brassicasterol, beta-sitostanol
US iHerb
Life Extension
Other supplements · Capsule
60 count
28 mgIngredient amount per label serving · Sodium
US iHerb
Micro Ingredients
Other oils · Softgel
300 count
300 mgIngredient amount per label serving · Oil of Oregano Extract
(Origanum minutiflorum) (leaf)
(a 20:1 extract, equivalent to 6,000 mg of Oregano Leaf, in a base of Extra Virgin Olive Oil) (Standardized to 165 mg Carvacrol)
US iHerb
Futurebiotics
Vitamin D · Capsule
60 count
125 mcg (5,000 IU)Ingredient amount per label serving · Vitamin D3
(as Cholecalciferol)
US iHerb
NOW Foods
Lutein · Softgel
120 count
25 mgIngredient amount per label serving · Lutein (from Marigold Flowers Extract)
(Tagetes erecta) (Lutemax 2020)
US iHerb
NOW Foods
Herbal supplements · Capsule
90 count
750 mgIngredient amount per label serving · Organic Raw Maca Root (6:1 Concentrate) (Lepidium meyenii) (Gelatinized - vegetarian)†
(Equivalent to 4,500 mg of fresh Maca Root)