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XXL Nutrition Essential Amino Stack
Photo: XXL Nutrition's website
XXL Nutrition · Amino acids · no. 7 in amino acids

Essential Amino Stack: what buyers say

5.9/10Supplist score from 234 reviews read · ★4.6 in the shop
How the score works

Well-loved amino drink to sip during training, but only with flavour: many can't get the unflavoured one down.

See price at XXL Nutrition★4.6 from 527 reviews in the shop

A plain link to the shop; we get nothing for it. Supplist is owned by simpliSELF B.V., which also sells its own supplements.

AI (Claude) summary of 234 reviews from XXL Nutrition's web shop, read on 16 October 2026, spot-checked by people. We don't verify ourselves that reviewers are buyers. How we use reviews

What buyers like

  • +Many buyers find the flavoured versions nice and fresh, especially apple, pina colada and raspberry. 94×
  • +Many reviewers say it dissolves quickly and without clumps in water. 25×
  • +Reviewers say it's good value for money and like the low kcal count. 9×

What buyers complain about

  • –Many buyers say the unflavoured version tastes bitter, sour or chemical, even in a shake. 24×
  • –Even with the flavoured versions, buyers complain about a bitter or chemical aftertaste and smell. 22×
  • –The powder sometimes clumps in the tub or leaves bits in the water. 5×
  • –Taste sometimes differs from tub to tub or seems worse after a recipe change. 2×

Watch out

  • !Pick a flavour; many buyers call the unflavoured one undrinkable, even mixed. 15×
  • !At the recommended amount of water buyers often find it too strong or too sweet. 6×
  • !Powder can clump in the tub or float on top in juice. 4×
  • !One buyer reports heartburn during training. 1×

The number is how many of the 234 reviews we read mention this. We only show points about taste, mixing, packaging, price and reported complaints, not about effects.

Price on 16 October 2026

XXL Nutrition doesn't allow automated price checks. See the price in the shop.

Good forPeople who want something with flavour to drink during exercise.
Less suited toPeople who want a neutral powder to mix unnoticed into a shake.
How the score of 5.9 is made
AI verdict on the reviews7.3
The AI's verdict on 234 reviews read: how often recurring pros and cons come up.
Buyer consensus4.0
How much buyers agree with each other. Low: read the downsides carefully.
Shop rating, compared with other products2.0
★4.56 in the shop · 10.2% give 1–3 stars. Almost everything sits at 4.3 to 4.9 stars; we stretch that out against other products on the same review system.

How the score works

Frequently asked questions

What do buyers think of XXL Nutrition Essential Amino Stack?

Well-loved amino drink to sip during training, but only with flavour: many can't get the unflavoured one down. Supplist score 5.9 out of 10, number 7 in amino acids.

What do buyers like most?

Many buyers find the flavoured versions nice and fresh, especially apple, pina colada and raspberry. (94 of 234 reviews read)

What's the most common complaint?

Many buyers say the unflavoured version tastes bitter, sour or chemical, even in a shake. (24 of 234 reviews read)

Other amino acids

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Body & Fit · Amino acids

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from €22.99 · €5.47 / 100 g
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6.5
Vitakruid · Amino acids

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Reviews read on 16 October 2026; prices checked on 16 October 2026. Prices in the shop may have changed since. A summary of what buyers say, not medical advice.