This product combines the hugely popular nutrient Glucosamine Sulphate with another called Chondroitin Sulphate. The tablets are made in the UK to pharmaceutical GMP standards. This is a high strength supplement and the two nutrients are included at levels that have been used in clinical studies. It is worth noting that a common practice with chondroitin supplements is to use preparations that are just chondroitin, but the label declares this as if it is 100% chondroitin. Therefore a supplement declared as ‘400mg chondroitin sulphate’ is often just 80mg of chondroitin sulphate. However, this Lamberts® supplement uses 110mg of a 90% preparation to provide 100mg of pure marine chondroitin, making this one of the best value products available.Daily intake: 3 tablets