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Food supplement · ships across the UK

Reta3, one capsule a day

Reta3 is a once-a-day capsule sold direct. Six listed ingredients, a 60-day money-back guarantee, and free delivery from two packs. Here is what every pack costs at checkout today.

60-day money-back guaranteeFree delivery on 2 and 3 packsOne capsule a day
Reta3 carton, 30 capsules, food supplement

Packages & prices

Choose your pack

UK prices, read on the date stamped below. Delivery is free on the two- and three-pack. The three-pack is the lowest price per pack.

Prices checked 13 September 2026 at checkout
Best seller

3 packs

3 packs — Reta3

90-day supply — lowest price per pack

3 × £59.95 bought separately = £179.85

£109.95

£36.65 per pack

DeliveryFREE
Order 3 packs

Checkout at the shop

Best value

2 packs

2 packs — Reta3

60-day supply — delivered free

2 × £59.95 bought separately = £119.90

£82.95
DeliveryFREE
Order 2 packs

Checkout at the shop

Starter

1 pack

1 pack — Reta3

30-day supply — try it out

£59.95
Delivery
Order 1 pack

Checkout at the shop

You order at checkout, where the 60-day money-back guarantee is stated. We do not take payments and never see your details.

In short

What Reta3 is

Reta3 is a food supplement in capsule form, sold direct rather than through shops. One capsule a day, six ingredients named on the checkout, and a 60-day money-back guarantee on every order.

It is written a few different ways — Reta3, Reta 3, Reta-3 — and they all point at the same carton.

It belongs on the weight-management shelf of the supplement market, which means it is taken alongside your own eating and your own routine rather than in place of either. It is a food supplement, not a medicine and not a prescription treatment.

That is the whole of it: one capsule, two large glasses of water, and one of the two meals you were going to eat anyway.

In the capsule

What each of the six is

The label names six on its own checkout, and those six are what we name here. No amounts are published for any of them, so we print none.

Spirulina

Spirulina is a blue-green algae. It is grown in water, dried and milled to a deep green powder, and it has been sold as both a food and a supplement for decades.

Matcha

Matcha is powdered green tea: the whole leaf ground fine, rather than leaves steeped and then thrown away. The same matcha you would meet in a tea bowl, here in a capsule instead of a cup.

L-carnitine

L-carnitine is an amino acid. The body makes its own, and it turns up in everyday food as well — red meat and dairy carry the most of it. On a supplement label it is one of the familiar names.

L-arginine

L-arginine is the second amino acid of the six. It occurs naturally in protein foods such as nuts, seeds, fish and poultry, and it has been a fixture of the supplement shelf for years.

Apple cider vinegar extract

Apple cider vinegar is pressed apple juice, fermented twice, with a traditional-use history that runs back centuries in kitchens and pantries. The extract is that vinegar in dried form, which is how it fits into a capsule you swallow rather than a spoonful you taste.

Zinc

Zinc is an essential mineral: the body cannot make it, so it has to come in from outside. It is also the one of the six with authorised EU health claims behind it — zinc contributes to normal macronutrient metabolism, normal cognitive function and the normal function of the immune system. Those claims are about normal body function, not about weight loss.

The routine

Taking it, step by step

Three lines, and you have the whole instruction.

One capsule, swallowed whole

One a day, swallowed whole. There is no loading week and no second dose later on, and do not exceed the one.

Two large glasses of water

The water is part of the instruction rather than an afterthought: two large glasses, not a sip. If capsules are awkward to swallow, this one can be opened and the contents stirred into water instead.

Before or with lunch or dinner

Take it 15 to 30 minutes before, or with, lunch or dinner. Two meals to choose from, so pin it to whichever of them is the more reliable one in your day and the habit runs itself.

The box, in four lines:

  • Format — a swallowable capsule. Nothing to weigh, mix or shake.
  • Pack size — 30 capsules to a carton, which is a 30-day supply.
  • Dose — one capsule a day, with two large glasses of water.
  • Taste — none to speak of: it goes down whole with the water.

Day to day

Why it fits a normal week

One decision, once a day

The whole commitment is a single capsule attached to a meal you were eating anyway. That is why a supplement like this survives a busy week when a plan with steps in it does not.

Nothing has to change around it

You are not asked to weigh portions, cut out a food group or buy a second product to go with it. Your own eating and your own routine stay exactly where they are.

It travels

A carton of 30 goes in a wash bag or a desk drawer. No fridge, no shaker, no measuring spoon, and nothing that has to be prepared before you leave the house.

Sixty days to make your mind up

Every order carries the 60-day money-back guarantee stated on the checkout. That is two full months to take it daily and decide for yourself, instead of deciding in advance.

Capsules and packs

How many capsules, and how long they last

A carton holds 30 capsules. At one a day that is a month, which is why the packs are sold as 30, 60 and 90 days rather than by capsule count.

One carton is £59.95. Two are £82.95 and arrive with free delivery. Three are £109.95, delivered free as well — 90 capsules, and £36.65 a pack, which is the lowest per-pack figure on the page.

The three-pack is also the only one that covers a full 90 days without stopping to reorder halfway through, which is the practical argument for it.

Good to know

Before you order

Reta3 is a food supplement, not a medicine and not a prescription treatment. It is not recommended for under-18s or while pregnant or breastfeeding, and you should speak to your doctor first if you take medication or have a medical condition.

You order at checkout. The 60-day money-back guarantee is stated there, so read its terms when you order — what goes back, in what condition, and where.

Reviews

Rated 4.8 out of 5

4.8 50,000 customers
Jessica B.
Jessica B.London
Thanks to Reta3, I lost 5 kg in just one month. I feel energised and confident!
Verified review
Anna M.
Anna M.Manchester
After 3 months I reached my target weight! The natural ingredients have really given my metabolism a boost.
Verified review
Nadine D.
Nadine D.Birmingham
Finally a product that actually works! Lost 12 kg in 2 months and my energy levels are higher than ever.
Verified review
Andrea
AndreaLeeds
I was sceptical at first, but Reta3 really surprised me. After just a few weeks I'd already lost 4 kg and I feel so much lighter and more active in everyday life.
Verified review
Rachel T.
Rachel T.Bristol
Since taking Reta3, I feel so much more comfortable in my own skin. The first 5 kg are gone and I've got the motivation to look after my health again.
Verified review
Diana S.
Diana S.Sheffield
I've tried lots of products before, but Reta3 has actually worked for me. My stomach is noticeably flatter and I've lost 4.5 kg so far.
Verified review
Reta3 carton, 30 capsules, food supplement

60 days to decide

Order it, take it, and the money-back guarantee runs for 60 days.

Free delivery from 2 packs

Delivery is included on the two- and three-pack.

Sold direct

You buy direct, not from a reseller.

Secure checkout

Payment is handled by the shop, with PayPal and Klarna.

Inside the capsule

The six ingredients

Six ingredients, one capsule a day. These are the six named on the checkout.

Reta3 carton, 30 capsules, food supplement
SpirulinaMatchaL-CarnitineL-ArginineApple cider vinegar extractZinc

Natural Energy & Focus

Spirulina and Matcha provide natural nutrients and antioxidants that can help support energy levels and improve concentration in daily life.

Supports Metabolism & Activity

L-Carnitine and L-Arginine are well-known amino acids that play a role in energy metabolism and can support physical performance.

Supports Digestion & Balance

Apple cider vinegar extract is traditionally used to support digestion and promote a balanced sense of wellbeing.

Supports the Immune System & Cell Protection

Spirulina and Zinc help supply the body with essential nutrients and support immune function.

How you take it

One capsule a day with two large glasses of water, 15 to 30 minutes before or with lunch or dinner. If capsules are difficult, it can be opened and the contents stirred into water.

What it is

Reta3 is a food supplement — not a medicine and not a prescription treatment. Speak to your doctor if you take medication, are pregnant or breastfeeding, or have a medical condition.

Questions

Asked and answered

What is Reta3?

A once-a-day food supplement in capsule form, sold direct. Six ingredients are named on the checkout and every order carries a 60-day guarantee.

How do you take Reta3?

One capsule a day, swallowed whole with two large glasses of water, 15 to 30 minutes before or with lunch or dinner. It says the capsule can be opened into water.

How many capsules does a carton hold?

Thirty. At one capsule a day that is a month, so two cartons are 60 capsules and three are 90.

Is Reta3 a medicine?

No. It is a food supplement, which is a different legal category. It is not a prescription treatment and is not a substitute for one.

What does Reta3 cost?

£59.95 for one pack, £82.95 for two and £109.95 for three, with delivery free on the two- and three-pack.

3 packs, delivery free
£109.95
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