Fructose
This is sugar and you will get 18g or just over 4 teaspoons of sugar per 250m serve.
Acid: citric acid
This is natural and probably in here for flavour.
Acidity regulator: sodium citrate
This is a natural product and will be in here probably as a preservative.
Valerian extract (80mg/100ml, 0.08 per cent)
Valerian is well known as a herb which can help you to relax but my research shows that there are many conflicting studies. Some say it has no effect at all, others say it does. The recommended dosage is between 270mg and 450mg of aqueous valerian extract. So 80mg per 100ml, which means you will get 200mg per serve, is a low dose.
Rosehip extract (30mg/100ml, 0.03 per cent)
I can't find any studies to say that rosehip helps you to relax or sleep. It can help arthritis, heart disease, colds and flu and stomach disease and can even be energising because it has high levels of vitamin C. Recommended dosage for this extract is 5g to 10g a day, so this is a low dose at 75mg per serve.
Lavender extract (10mg/100ml, 0.10 per cent)
Lavender does have lots of studies to support its role as a herb which encourages relaxation. The recommended dosage is 1 to 4 drops of lavender oil which is 20mg to 80mg. At 25mg per serve this is a low dose.
Cactus fig flavour
Cactus fig or prickly pear is popular in Mexico as an intoxicant. However, this is just the flavour, which is probably artificial, so I doubt it would have much effect.
My recommendations
This drink doesn't contain any preservatives, artificial colours or sweetener so that's good.
I'm not a naturopath but my research shows that the herbs this drink contains with the intention of helping you to sleep are present in such small doses that I doubt they would have much effect on the average person.
Traditionally any herbal remedy will take a while to work and needs to be taken for a while so I'm not sure one of these drinks would have an instant effect.
I would definitely not want to see a child drinking this though, which is entirely possible when it is being sold freely in dairies and supermarkets.
My advice is if you want to sleep and get help from herbs naturally then visit a naturopath or health shop and get the right dosage of valerian and other herbs which can help when taken over a long period of time.
Do you have a food product you would like to feature in Wendyl Wants to Know?
Email wendylwantstoknow@gmail.com with suggestions. Unfortunately Wendyl cannot correspond with readers.