Isomer E 268.4 mg (400 IU)

GNC Isomer E 268.4 mg (400 IU) received a product quality score of 81/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 3 active ingredients Of the 5 inactive ingredients, 4 are rated safe and 1 are flagged for review. The manufacturer, GNC, holds a brand trust score of 88/100 with 5 verified certifications including Informed Sport, Consumerlab, Fda Gmp Inspections, Usda Organic.

GNC Isomer E 268.4 mg (400 IU) contains 3 active ingredients: Vitamin E (as D-Alpha-Tocopherol) (268.4 mg), Total Tocopherols (as D-Alpha-Tocopherol, D-Beta Tocopherol, D-Delta-Tocopherol, D-Gamma-Tocopherol) (391 mg), Toco-Rich (133 mg). Notable high-dose ingredients include Vitamin E at 1789% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

GNC Isomer E 268.4 mg (400 IU) has been analyzed for ingredient safety across all its components. Of 5 inactive ingredients, 4 are rated safe. 1 ingredient is flagged for review: Titanium Dioxide. 'Caution' doesn't mean dangerous — it indicates the ingredient has some considerations worth being aware of, such as potential sensitivities or ongoing research. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

GNC receives a brand trust score of 88/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1935 and headquartered in Pittsburgh, Pennsylvania, USA, the company offers 200 products in their lineup. They hold 5 verified certifications including Informed Sport, Consumerlab, Fda Gmp Inspections, Usda Organic. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. No regulatory violations or FDA warning letters were found in our research.