Transparent Labs

Mass Gainers - Sweet Vanilla

£105.00

Transparent Labs Mass Gainer in Sweet Vanilla is a high-calorie protein and carbohydrate supplement designed to support muscle growth and weight gain for those who struggle to meet their energy needs through food alone.

  • Supports muscle growth alongside a structured training programme
  • High-calorie formula suited to hard gainers and athletes
  • Grass-fed whey provides leucine-rich protein for recovery
  • Complex carbohydrates deliver sustained energy, not a sugar spike
  • Transparent labelling with no hidden proprietary blends
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Transparent LabsMass Gainers - Sweet Vanilla
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About This Product.

Transparent Labs Mass Gainer in Sweet Vanilla is a high-calorie protein and carbohydrate supplement designed to support muscle growth and weight gain for those who struggle to meet their energy needs through food alone. The formula centres on grass-fed whey protein — a fast-digesting, leucine-rich source well-suited to post-workout recovery — paired with complex carbohydrates that provide a sustained release of energy rather than a sharp glucose spike.

This product suits hard gainers, athletes in demanding training blocks, or anyone whose caloric expenditure consistently outpaces their appetite. It fits best around training — either post-workout to prime muscle protein synthesis, or as a between-meal addition when hitting daily calorie targets through whole food alone is impractical.

Transparent Labs has built a reputation in the performance supplement market for straightforward labelling and ingredient transparency, avoiding proprietary blends that obscure what you are actually consuming. The grass-fed whey source is a meaningful formulation choice: the protein class is well-studied for muscle repair and hypertrophy, and the use of complex rather than simple carbohydrates reflects a more considered approach than many mass gainers on the market, which lean heavily on cheap sugars to inflate their calorie count. For those with a confirmed training stimulus and a genuine caloric deficit relative to their goals, a well-formulated mass gainer can be a practical and reliable tool.

Grass-fed Whey, Complex Carbs

How to Take It

i.

Mix 2 scoops with water or milk. Most users take it post-workout or between meals to supplement daily calorie and protein targets. Check the packaging for exact serving size and nutritional breakdown.

Frequently Asked.

Who is this product actually suited to?

It is best suited to people with a genuine caloric deficit relative to their muscle-gain goals — hard gainers, athletes in heavy training blocks, or those with high daily energy expenditure who cannot meet their targets through food alone. It is not a substitute for a structured diet and resistance training programme.

Why grass-fed whey rather than standard whey?

Grass-fed whey is sourced from cows raised on pasture rather than grain-fed systems. As a protein class, whey is rich in leucine, the amino acid most closely linked to triggering muscle protein synthesis. The sourcing choice reflects a formulation standard rather than a functional difference in protein digestion.

How does this differ from a standard whey protein?

A mass gainer provides a significantly higher calorie count per serving by combining protein with a substantial carbohydrate load. A standard whey protein is primarily a protein supplement with minimal carbohydrates. If you are already meeting your calorie targets, a standalone protein powder is likely the more appropriate choice.

Is it suitable for people with lactose intolerance?

Whey protein is derived from milk, so it contains lactose. Sensitivity varies — many people with mild lactose intolerance tolerate whey concentrate or isolate reasonably well, but if you have a confirmed dairy allergy or significant intolerance, this product is unlikely to be suitable. Check the packaging for full allergen information.

How long before I notice a difference in body composition?

A mass gainer supports weight gain only when total daily calorie intake exceeds expenditure. Given a consistent training stimulus and sufficient caloric surplus, meaningful changes in muscle mass typically take several weeks to months. Supplements accelerate nothing on their own — the training and diet context is what drives the result.

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Customer Reflections

Overall Sentiment

4.814 reflections
1 – 6 of 14 reflections
JW

Finally hitting my calorie targets

4 months ago

Been a hard gainer my whole life — eat loads, never seem to put anything on. Started using this a few weeks back after a mate at the gym recommended it. One serving post-workout and I'm actually seeing the scale move in the right direction. Vanilla flavour is proper nice, not that artificial sweetness you get with most mass gainers. Mixes clean too, no gritty residue at the bottom.

PM

Solid product, transparent about what's in it

4 months ago

Swapped from a supermarket own-brand gainer and the difference is noticeable. I actually know what I'm consuming now — no hidden blends, just straight ingredients. The carbs feel more sustained energy-wise rather than a sugar rush followed by a crash. Taking it after training sessions and it fits perfectly into my evening routine.

CB

Does exactly what it says

5 months ago

No frills, no nonsense. Mixes well, tastes decent, and I've put on half a stone since I started using it alongside my bulk. Happy customer.

T

Great formula, but the tub is enormous

5 months ago

Quality is clearly there — the protein source is solid and the vanilla taste is actually enjoyable rather than overwhelming. My only gripe is the sheer size of the tub. I'm in a small London flat and finding a spot for it in my kitchen is a genuine challenge. Wish they offered a smaller serving option or resealable pouch format. Would still buy again though.

AR

5 months ago

Third bag in now. Stacks well with creatine — I just add a scoop to the shake. Recovery feels better and the weight is creeping up steadily. Good stuff.

MT

Proper mass gainer — not just sugar

6 months ago

I've tried a few cheaper gainers over the years and they've all been largely maltodextrin and not much else. This one actually uses a more considered carbohydrate source and you can feel the difference in how it sustains you. Pricey, yes, but you're paying for something that's actually formulated thoughtfully. Vanilla flavour is mild and works well blended with a banana.

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