Gisou has built one of the most recognisable aesthetics in modern hair care, centred on Mirsalehi Bee Garden honey and a distinctive amber visual identity. The brand markets its products as honey-infused and nature-inspired. But "nature-inspired" and "natural" are not the same thing, and neither is equivalent to third-party certified. The ingredient list tells a more specific story.
How to Evaluate a "Natural" Claim
Before looking at Gisou specifically, a brief reminder of the regulatory context: in the EU and UK, "natural" is not a legally defined term for cosmetic products. Any brand can use it on any product without meeting a defined standard or obtaining any certification. The only reliable way to evaluate a natural claim is to read the INCI ingredient list and look for recognised third-party certification logos.
What the INCI List Shows
Looking at Gisou's publicly available ingredient lists for key products, several ingredients appear that are not considered natural under recognised certification standards:
- Phenoxyethanol, a synthetic preservative widely used in conventional cosmetics. It is not permitted in COSMOS certified formulas (only a restricted list of approved preservatives is allowed under COSMOS). It appears in multiple Gisou products.
- Behentrimonium Chloride, a synthetic quaternary ammonium compound used as a conditioning agent and preservative. It is a petrochemical-derived ingredient not permitted in COSMOS formulas.
- Cetrimonium Chloride, another synthetic quaternary ammonium salt used as a conditioning agent. Similar classification to behentrimonium chloride.
- Synthetic fragrance compounds, listed as specific aroma chemicals (e.g., Hexyl Cinnamal, Linalool, Citronellol) which can be synthetically or naturally derived; the specific sourcing is not publicly disclosed.
The honey ingredient (Mel / Honey) does appear in Gisou formulas, typically in the lower portion of the ingredient list, indicating it is present but not at dominant concentrations in most products.
Is Gisou Certified?
Gisou does not hold COSMOS Natural or COSMOS Organic certification. It is not listed in the ECOCERT, Soil Association, or NATRUE certification databases. The brand holds PETA cruelty-free certification, which relates to animal testing practices, not ingredient naturalness or organic sourcing.
Gisou does not claim to be a certified natural brand. The brand's marketing centres on honey as a hero ingredient and a lifestyle aesthetic, not on third-party verified natural certification. This is a legitimate position, but it means the "natural" associations in Gisou's branding are marketing rather than verified claims.
The Difference in Approach
Choosing between brands like Gisou and certified natural alternatives is a values question as much as an ingredient question. Gisou produces well-regarded products with effective conventional formulations. The question is whether the natural and honey-centric marketing accurately represents the formulation, and whether third-party certification matters to you as a buyer.
Most NUDA products are certified to the ECOCERT COSMOS standard, audited annually and verified ingredient by ingredient. Each product page states its exact level. No Phenoxyethanol, no synthetic quaternary compounds, no petrochemical-derived ingredients. You can verify our certification directly on our certifications page.
Browse our full certified range: Volume and Body, Shine and Colour, Scalp and Strength.
For comparison, our rosemary hair and scalp oil is certified COSMOS Organic by ECOCERT, and its full INCI list is published on the product page so you can run this same check on us.
Related reading
- Natural Hair Care Brands: Which Are Actually Certified? (2026 Comparison)
- Is Kérastase Natural or Clean? What the Ingredients Show
- Which Hair Care Brands Are COSMOS Certified in the UK and EU?
Frequently Asked Questions
Is Gisou cruelty-free?
Yes. Gisou holds PETA cruelty-free certification, meaning the brand does not conduct or commission animal testing on its products or ingredients. Cruelty-free certification relates to animal testing practices only, and does not indicate anything about ingredient naturalness, organic sourcing, or third-party natural certification.
Does honey in a hair product actually do anything?
Honey is a humectant that attracts and retains moisture. In hair care formulas, honey and honey-derived ingredients can provide conditioning benefits. The concentration at which honey is present in a formula affects how meaningful its contribution is. In rinse-off products, ingredients present in the lower portion of the INCI list (after preservatives and fragrance) are typically below 1% of the formula and have limited functional impact beyond marketing relevance.
What does PETA cruelty-free certification cover?
PETA's cruelty-free certification (the Beauty Without Bunnies programme) certifies that a brand does not conduct, commission, or pay for animal testing on finished products or ingredients, and does not sell in markets where animal testing is required by law (though this policy has various nuances regarding ingredient testing conducted by third parties). It does not address ingredient naturalness, organic status, or environmental impact of ingredient sourcing.
What are quaternary ammonium compounds in conditioners?
Quaternary ammonium compounds ("quats") are positively charged conditioning agents that adsorb onto the negatively charged surface of hair, providing slip, detangling, and softness. Common examples include Behentrimonium Chloride and Cetrimonium Chloride. They are effective conditioners but are synthetic, petrochemical-derived, and excluded from COSMOS certified formulas. Natural alternatives, plant-based conditioning agents and hydrolysed proteins, serve similar conditioning functions in certified natural products.
Can I compare ingredient lists between brands myself?
Yes. Every cosmetic product sold in the EU and UK must display the full INCI ingredient list, in descending order of concentration. The INCI names are standardised, so the same ingredient has the same INCI name regardless of brand or product. You can look up any ingredient in databases like the EU's CosIng database or the EWG Skin Deep database to understand its origin and regulatory status.