TA 65 astragalus
In 2001, a California company Geron isolated a molecule from Chinese herb Astragalus and states that it can activate telomerase.
In 2004, a New York company called TA Sciences Inc. bought the rights from Geron for a secret formulation that they began to market under the name TA-65.
The Supplement Facts on the TA-65 label is Astraglus Root Extract 8mg.
According to the report from US lab AACL, the content of TA-65 actually is 5.44mg of cycloastragenol.
Astragalus is an herb that been used as traditional Chinese medicine for more than 2000 years. From 1 tons of astragalus, we can extract around 1kg of 98% astragloside IV. And from 1kg of 98% astragaloside IV, we only can get around 200grams of 98% Cycloastragenol based on advanced extraction technology.
That is may explain why the price of cycloastragenol 98% is expensive. Astragalus is Chinese herb, so the manufacturer from China has excellent advantage.