BENEFITS: Add a combination of essential oils, tinctures, hydrolytes or some other herbal extracts to the shampoo base. The recommended maximum total volume of tinctures, floral waters and other herbal extracts is 15 ml per 250 ml base. The proportion of all essential oils should not be higher than 3%, which is about 70 drops per 250 ml base. After adding the desired ingredients, 5-10 ml shampoo rub on wet hair with gentle massage and then rinse well
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