The very cheap (less than £1 per product) ‘extract’ conditioners by Tesco used to be silicone-free. However, they now contain Dimethicone which does not fit with the Curl Girl Method.
The following products are not approved

Silicones Detected – dimethicone

Silicones Detected – dimethicone

Silicones Detected – dimethicone
Ingredients checked November 2023