Puritan's Pride Organic Flaxseed Oil, Cold-Pressed, 16 Fluid Ounces ($6.74 after 20% coupon + Free Ship via Prime)

This is one of the best prices I've seen on this size bottle of flaxseed oil. The best price I found at Walmart was about $8.88 for a similar size bottle. Flaxseed oil is listed as the absolute best thing you can use to season cast iron pans. Plenty of websites provide details on the process, if you're interested.

Item FormLiquid
BrandPuritan's Pride
IngredientsOrganic Flax Oil
Material FeatureCertified Organic, Vegetarian
Sensitive Ingredient InformationGluten Free, Milk Free, Lactose Free, Soy Free, Wheat Free, Fish Free
About this item
Highest quality vitamins and supplements since 1973
Cold pressed
Pure and unrefined
Vegetarian

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