FNCTION
FNCTION is a UK supplement brand selling CALM, a salted cacao evening drink with marine collagen, ashwagandha and magnesium, in tubs and sachet boxes, plus a frother.
No live codes or offers from FNCTION right now — here's what to know before you shop.
About FNCTION
FNCTION (styled F+NCTION) is a UK wellness brand built around one formula, CALM, a cacao drink meant for the end of the day. FNCTION LTD, company 15618875, operates the store and was incorporated on 5 April 2024. The brand's founder story tells of a former investment banker with a biomechanics background who opened a private health practice in London in 2021 and devised the recipe while recovering from a car accident.
What FNCTION sells
- CALM 30 Day in salted chocolate, a month of servings in a single pack
- CALM sachet boxes holding 15 or 30 single-serve portions
- The F+NCTION Frother, a handheld mixer for blending CALM into water or milk
- CALM on subscription, which can be paused, skipped or cancelled before the next billing date
Per serving, the brand lists 10g of hydrolysed marine collagen peptides from Japan, 3g of 10:1 ashwagandha root extract and magnesium bisglycinate, with L-theanine, reishi, chamomile, passionflower and vitamins B6, B12 and C. One sachet is stirred or frothed into 250ml of hot or cold water before bed. FNCTION says CALM is for adults over 18, and its terms add that the products are not intended to diagnose, treat, cure or prevent any disease.
Delivery and returns
UK parcels cost £5.99, travel by Royal Mail or an equivalent tracked service and take 2 to 4 business days. The shipping policy lists no free-delivery threshold for one-off orders. Deliveries to EU countries cost £14.99 and take 2 to 11 business days; the UAE, Australia, Canada, the USA and more than 60 other countries cost £23.99 and take 3 to 17 business days, with import charges paid by the buyer. Orders are processed Monday to Friday, excluding UK bank holidays.
A 30-day money-back guarantee applies to the first purchase of each product. The request goes by email to support@fnction.co within 30 days of receiving the parcel, with proof of purchase, and FNCTION may ask for the unused portion back at the customer's expense. Postage is never refunded and repeat purchases are excluded, but items that arrive damaged or defective are replaced at no cost if reported within 7 days of delivery.
Ways to save at FNCTION
The subscription terms promise 30% off every subscription order and free delivery on each one (checked November 2026).
FNCTION was founded in 2024.
Shipping & Returns
UK £5.99, 2 to 4 business days by Royal Mail or equivalent tracked service; no free-delivery threshold on one-off orders (subscription orders ship free). EU £14.99, 2 to 11 business days; rest of world £23.99, 3 to 17 business days, buyer pays import charges. Processed Monday to Friday.
Returns Policy
30-day money-back guarantee on the first purchase of a product: email support@fnction.co within 30 days of receiving it with proof of purchase; the unused portion may need returning at the buyer's cost. Shipping not refunded; repeat purchases excluded. Damaged or defective items reported within 7 days are replaced free.
Company Information
Founded
2024
Frequently Asked Questions
How much does FNCTION charge for UK delivery?
UK delivery costs £5.99 and takes 2 to 4 business days by Royal Mail or an equivalent tracked service. One-off orders have no free-delivery threshold, although subscription orders are delivered free.
What is the FNCTION money-back guarantee?
FNCTION refunds a first purchase of a product if asked within 30 days of receiving it, by email to support@fnction.co with the order number. Postage is not refunded, and the unused product may need returning at the buyer's cost.
How can shoppers pay less for FNCTION CALM?
A CALM subscription takes 30% off every order and adds free delivery (checked November 2026). Deliveries can be paused or skipped, and the plan can be cancelled any time before the next billing date.
Who owns FNCTION?
FNCTION LTD, company number 15618875, incorporated in England on 5 April 2024. Its terms of service are governed by the laws of England and Wales, and customer support runs through support@fnction.co.
What is in FNCTION CALM?
CALM is a salted cacao powder with 10g of hydrolysed marine collagen peptides and 3g of ashwagandha root extract per serving. It also lists magnesium bisglycinate, glycine, L-theanine, reishi, chamomile, passionflower and vitamins B6, B12 and C.
Does FNCTION ship outside the UK?
Yes. EU delivery costs £14.99 and takes 2 to 11 business days, while the UAE, Australia, Canada, the USA and other countries cost £23.99 and take 3 to 17 business days. Buyers pay any import charges.
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Customer Service Email
support@fnction.coSimilar Shops
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