Founded in 1983, KIRKELAND is a self-owned brand of Costco, the king of well-known warehouse retailers in the United States, mainly producing and selling dietary supplement products. Kirkland Signature's products are USP (United States Pharmacopeia/National Formulary) certified and are known for their affordability and cost-effectiveness.
 
KIRKELAND continues the Costco style, with few product types, high quality and low price, and convenient choice. There are three types of KIRKELAND fish oil that can be easily purchased in China, namely Wild Alaskan FISH OIL, FISH OIL and OMEGA-3 concentrated fish oil, which are made of Alaskan wild fish such as yellow pollock and salmon, which are less affected by pollution and are relatively safe.
 
Costco has entered the Chinese market and has opened a flagship store on Tmall, making it more convenient to buy KIRKLAND products. Unlike other fish oil products, Wild Alaskan FISH OIL contains a wide variety of polyunsaturated fatty acids and a small amount of vitamins A and D, and in addition to Omega-3, it also contains Omega-6 and Omega-9, so it is recommended to take one capsule per day. This product has 230 capsules per bottle and costs 189 yuan, which is enough to be used for more than half a year. According to the ConsumerLab evaluation in the United States, the Omega-3 content in Wild Alaskan FISH OIL is consistent with its label, but the content of other fatty acids is only 48.1% of the label value, which is inconsistent.
 
KIRKLAND'S FISH OIL AND OMEGA-3 FISH OIL CONCENTRATE ARE REGULAR FISH OIL PRODUCTS, WITH THE FORMER BEING USED AS A DAILY SUPPLEMENT AND THE LATTER BEING USED TO PREVENT CARDIOVASCULAR DISEASE. They are also packaged in large bottles of more than 200 capsules, which is very cost-effective.
 
KIRKLAND nutritional supplements have USP certification, safety has a higher guarantee, but there is still a gap between quality and high-end fish oil products, recommended as a daily Omega-3 supplement, but if you want to achieve better cardiovascular health effects, you can choose more high-grade fish oil products.