Sleep Powder
Night-time.
- ✓3g of L-glycine and 350mg of magnesium, from 1750mg of magnesium bisglycinate, per serving
- ✓500mg lemon balm leaf extract, 450mg valerian root extract and 250mg L-theanine per serving
- ✓Four calories, sugar free and vegan, in a chamomile honey drink
Glycine and magnesium, plus four more.
Efectiv Sleep has 3g glycine, 350mg magnesium, 250mg L-theanine, 250mg L-tryptophan, valerian root and lemon balm in a drink you take 30 to 60 minutes before bed.
3g of glycine per serving.
1750mg of magnesium bisglycinate providing 350mg of elemental magnesium.
When should you go to bed?
Set your alarm and your training load. We round to whole 90-minute sleep cycles, work back to a lights-out time, and tell you when to mix your scoop.
Inside the scoop.
We don't hide behind proprietary blends. Six actives, every dose listed, in one 8g scoop.
The full label.
Six actives, all listed, all dosed on the label. Ingredients, allergens and nutrition for Sleep Powder, as printed on the tub.
L-Glycine, Magnesium Bisglycinate, Acidity Regulator (Malic acid), Lemon Balm Leaf Extract, Valerian Root Extract, L-Theanine, L-Tryptophan, Flavouring, Anti-Caking Agent (Silicon Dioxide), Chamomile Flower Powder, Sweetener (Sucralose), Colouring (Beta Carotene, Caramel Colour).
No known allergens. Manufactured in a facility that also handles Egg, Gluten and Nuts.
Chamomile honey, before bed.
240g is thirty nights. A drink rather than another capsule to remember.
One scoop, before bed.
Eight grams in 300ml of chilled water, 30 to 60 minutes before sleep, as part of an evening routine.
How we compare.
Sleep Powder next to typical bedtime supplements on glycine dose, magnesium form, transparency, sugar and cost per serving. Every dose is on our label, so you can check it yourself.
Comparison against leading UK sleep and bedtime magnesium supplements (powders, capsules and tablets). Competitor price per serving based on list price; Efectiv based on RRP at 30 servings per tub. Checked October 2026.
What people say.
Verified Sleep Powder reviews from customers who bought it, collected by Lipscore. Good or bad, every review is published.
via Lipscore
All Sleep Powder reviews.
Collected & verified by LipscoreQuality you can check.
Sleep Powder is made in the UK to ISO 22000 standards, with every active ingredient printed on the label with its dose.
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Complete the stack
Questions, answered.
L-Glycine, Magnesium Bisglycinate, Acidity Regulator (Malic acid), Lemon Balm Leaf Extract, Valerian Root Extract, L-Theanine, L-Tryptophan, Flavouring, Anti-Caking Agent (Silicon Dioxide), Chamomile Flower Powder, Sweetener (Sucralose), Colouring (Beta Carotene, Caramel Colour).
Food supplement. Do not exceed the recommended daily dose. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Keep out of reach of young children.
Sleep Powder: six actives, sugar free.
Efectiv® Sleep is a powdered drink with six actives, to be taken before bed. The dose of each is on the label.
Each 8g serving has 3g of glycine, 350mg of magnesium (from 1750mg of magnesium bisglycinate), 250mg of L-theanine, 250mg of L-tryptophan, 500mg of lemon balm leaf extract and 450mg of valerian root extract, in a Chamomile Honey flavour. It is sugar free and suitable for vegans and vegetarians.
3g L-Glycine · Transparent label · Sugar free
One scoop, before bed.
30 to 60 minutes before sleep, as part of an evening routine.
Turn off electrical devices 60 minutes before bedtime to help you unwind.
Every night · rest days included · 30 nights per tub
Delivery and returns.
Order before 4pm for same-day dispatch. Subscriptions include free express delivery on orders over £30.
Unopened products can be returned within 14 days of delivery.
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