Dr Organic has a huge selection of conditioners to choose from, many of which are CGA.
You can buy Dr Organic products from Holland and Barrett.
The following products are approved

Manuka Honey Conditioner 
Moroccan Argan Oil Conditioner 
Royal Jelly Conditioner 
Tea Tree Conditioner 
Olive Oil Conditioner 
Coffee Mint Anti-Dandruff Conditioner 
Vitamin E Conditioner 
Rose Otto Conditioner 
Pomegranate Conditioner 
Lavender Conditioner 
Aloe Vera Conditioner 
Hemp Oil Hair & Scalp Treatment Mousse 
Moroccan Argan Oil Hair Treatment Conditioner
The following products are not approved

Virgin Coconut Oil Conditioner
Harsh Alcohols Detected – isopropyl alcohol, alcohol denat, alcohol
Charcoal Conditioner
Harsh Alcohols Detected – isopropyl alcohol
Hemp Oil Conditioning Hair Mask
Harsh Alcohols Detected – alcohol
Dead Sea Mineral Shampoo & Conditioner 2 In 1
Clarifying cleansers detected – sodium lauroyl methyl isethionate, sodium lauroyl sarcosinate
Harsh Alcohols Detected – alcohol
Hemp Oil Rescue Conditioner
Harsh Alcohols Detected – alcohol
Cocoa Butter Conditioner
Harsh Alcohols Detected – alcohol
Hemp Oil 2 In 1 Shampoo & Conditioner
Silicones Detected – humulus lupulus cone extract
Clarifying cleansers detected – sodium lauroyl sarcosinate
Moroccan Argan Oil Hair Treatment Serum
Silicones Detected – cyclopentasiloxane, dimethiconol
Harsh Alcohols Detected – alcohol denat
Royal Jelly Shampoo
Clarifying cleansers detected – sodium lauroyl methyl isethionate, sodium lauroyl sarcosinate
Harsh Alcohols Detected – alcohol
Virgin Coconut Oil Shampoo
Clarifying cleansers detected – sodium lauroyl methyl isethionate, sodium lauroyl sarcosinate
Harsh Alcohols Detected – alcohol denat, alcohol
Non-Curly Girl Waxes and Oils Detected – hydrolyzed ceratonia siliqua seed extract
Hemp Oil Rescue Shampoo
Clarifying cleansers detected – sodium lauroyl methyl isethionate, sodium lauroyl sarcosinate
Harsh Alcohols Detected – alcohol
The following products are a grey area – neither approved or not approved

Manuka Honey Shampoo
Clarifying cleansers detected – sodium lauroyl sarcosinate
Moroccan Argan Oil Shampoo
Clarifying cleansers detected – sodium lauroyl sarcosinate
Charcoal Shampoo
Clarifying cleansers detected – sodium lauroyl methyl isethionate
Vitamin E Shampoo
Clarifying cleansers detected – sodium lauroyl sarcosinate
Aloe Vera Shampoo
Clarifying cleansers detected – sodium lauroyl sarcosinate
Pomegranate Shampoo
Clarifying cleansers detected – sodium lauroyl sarcosinate
Tea Tree Shampoo
Clarifying cleansers detected – sodium lauroyl sarcosinate
Coffee Mint Anti-Dandruff Shampoo
Clarifying cleansers detected – sodium c14-16 olefin sulfonate, sodium lauroyl methyl isethionate
Cocoa Butter Shampoo
Clarifying cleansers detected – sodium lauroyl methyl isethionate
Olive Oil Shampoo
Clarifying cleansers detected – sodium lauroyl sarcosinate
Rose Otto Shampoo
Clarifying cleansers detected – sodium lauroyl sarcosinate
Lavender Shampoo
Clarifying cleansers detected – sodium lauroyl sarcosinate
Ingredients checked January 2019