Supbox is a box full of supplements to explore. Protein snacks, drinks, pre-workouts and samples from brands across the fitness world. Open it, try everything, and discover your new favourites.

What’s inside a Supbox?

Each box is packed with a mix of protein snacks, drinks, pre-workouts and whey samples. You’ll get anything from 12 to 20 items to try, depending on which box you choose. The description of the box will tell you how much is in each.

Are the products full-size or samples?

Our boxes are filled with single use items, such as bars, cookies, sample sachets, & drinks etc. We do not sell full sized supplement tubs. It’s all about trying new things without buying a full tub.

Are your products in date?

All Supbox products are carefully checked and tracked to ensure they are within their best before dates. We work closely with our suppliers and monitor stock to make sure everything included in your box is fresh and ready to enjoy.

Do you ever include products past their best before date?

In some cases, we may include an additional product that is past its best before date clearly labelled as an Expired Freebie. These are never part of the paid contents of your box and are included purely as a bonus. Best before dates relate to quality, not safety, and these items are still safe to consume.

Grenade Protein Bar 60g Birthday Cake – protein bar sample from Supbox

Grenade High Protein Bar is a low-sugar, high-protein snack designed to support muscle recovery while satisfying cravings. Each bar delivers over 20 g of protein with a layered texture that feels indulgent without derailing nutrition goals. Ideal for post-workout recovery, between meals or as a convenient protein boost on the go.

Key Benefits

Over 20 g of protein per bar to support muscle repair and growth.
Low sugar content, suitable for calorie-controlled diets.
Multi-layered texture for a more indulgent eating experience.
Helps curb cravings while supporting protein intake.
Convenient 60 g bar for gym bags, work or travel.

Ingredients: Protein Blend [Calcium Caseinate (Milk), Whey Protein Concentrate (Milk), Whey Protein Isolate (Milk)], White Chocolate with Sweetener (25%) [Sweetener (Maltitol), Cocoa Butter, Whole Milk Powder, Emulsifier (Lecithins), Natural Flavouring], Humectant (Glycerol), Bovine Collagen Hydrolysate, Dietary Fibre (Polydextrose), Water, Sprinkles with Sweetener (4.5%) [Sweetener (Maltitol), Starch, Palm Fat, Rice Flour, Colours (Curcumin, Beetroot Red, Anthocyanins, Riboflavins, Brilliant Blue FCF)], Sunflower Oil, Flavourings.

Allergen Advice: Contains Milk. May also contain Cereals containing Gluten, Soya, Peanuts and Nuts.

Nutritional Information	Per 60g Bar
Calories	218 Kcals
Protein	21g
Carbohydrates	21g
(Of Which Sugars)	1.6g
Fat	8.1g
(Of Which Saturates)	4g

Note: Always check the product packaging for the most accurate ingredients and allergen information.

Grenade Protein Bar 60g Birthday Cake

£2.69

Quantity

A minimum spend of £25 applies for all custom made selection boxes.

We get a kick out of making your very own selection boxes. So pick & mix your favourite Protein Snacks, Pre Workouts, Drinks, Gels and Powders any way you like.

Larger orders may be shipped in a large non-branded shipping box.