The short answer
Bioptimal sells raw ingredients in bulk and large formats, and that is where it is unbeatable: its organic soy protein in 3 kg works out at 22.20 EUR per kilo of protein, the cheapest in all our price checks, whey included, and its spirulina powder at 4.50 EUR per 100 g, five times less than the best French spirulina. In return, most of its raw materials are grown or processed in China or India, and its capsules are far less attractive than its powders. The brand has no Trustpilot reviews.
What our price checks measured
| Product | Bioptimal | Rank in our comparison | Stated origin |
|---|---|---|---|
| Soy protein, 3 kg | 22.20 EUR per kilo of protein | first out of ten | China |
| Pea protein, 3 kg | 23.73 EUR per kilo of protein | second | Canada, processed in China |
| Spirulina powder, 1 kg | 4.50 EUR per 100 g | first | India |
| Psyllium powder, 1 kg | 27.95 EUR per kilo | second, within 2% of KoRo | not stated |
| Psyllium capsules | 414 EUR per kilo | last | not stated |
What the brand does well
Bulk powder prices
The model is simple: one ingredient, no additives, sold in bags from 500 g to 3 kg. On pea protein, going from 500 g to 3 kg halves the price per kilo of protein, from 47.38 to 23.73 EUR. On spirulina, the kilo works out at 44.95 EUR. For anyone who uses it regularly and is happy to flavour it themselves, these are the best prices on the market that we have found.
Published spirulina analyses
For an alga that absorbs heavy metals from its growing environment, this is the decisive point. Bioptimal publishes a certificate of analysis on its page and states that an independent laboratory regularly tests for heavy metals. That is what lets it into our spirulina comparison, whereas a cheaper spirulina with no published analysis is excluded.
Product pages that state the origin
Each page says where the raw material is grown and where it is processed, which many brands do not do. Packaging is carried out in France by an ESAT, an establishment that employs people with disabilities.
What you should know before buying
A large share comes from China or India
The soy protein is grown and made in China, the pea is grown in Canada then processed in China, and the spirulina comes from India. This is not a quality flaw in itself, and the brand states it clearly, but it matters if you prefer a European origin: pumpkin protein comes from Austria and hemp protein from France, at a higher price per kilo of protein, 29.21 and 38.74 EUR.
The soy and pea isolates are salty
They contain 1.3 g of salt per 100 g, or about 0.4 g per 30 g serving. At two servings a day, that is nearly 1 g of salt.
One product page to correct, and capsules to avoid
The rice protein shows 89 kcal per 100 g for 80 g of protein, and 12 g of saturated fat for 2.4 g of fat: these figures cannot be correct, and we have not ranked it. As for the psyllium capsules, they cost 414 EUR per kilo and provide less than 1 g a day, when the same brand recommends 10 g of powder: the powder is fifteen times cheaper.
Customer reviews
We found no Trustpilot reviews for Bioptimal on 24/09/2026, and its profile has not been claimed. Reviews shown on its own website are not an independent source. This review is therefore based solely on our price, composition and origin checks.
Who it is for, in practice
Yes for plant proteins in 3 kg and spirulina powder if price is your first criterion and an Asian origin does not bother you.
Yes for psyllium powder, at KoRo’s price to within 2%.
Avoid the capsules when the same ingredient is available as a powder, and prefer pumpkin or hemp if you want a European origin.
How we put this review together
We have not tested these products and we do not claim to have. Prices and compositions were checked on 24/09/2026 on the brand’s official website, converted to the price of the active ingredient and compared with the benchmarks in our comparisons.
Our sources
- Official website bioptimal.fr, viewed on 24/09/2026: prices by size, nutritional values, origins and certificates.
- Trustpilot, bioptimal.fr page, viewed on 24/09/2026: no reviews.