Is Joanna serum safe for sensitive or acne‑prone scalps?

The serum contains fragrance and preservatives that can be irritating, so it is generally safe for dry hair but may trigger reactions on sensitive or acne‑prone scalps.

What benefits does coconut oil provide in this hair serum?

Coconut oil supplies medium‑chain fatty acids that penetrate the hair cuticle, reducing protein loss, adding shine and improving softness.

How often should the serum be applied and does it contain any controversial ingredients?

Apply a few drops to damp or dry hair once or twice daily as needed; the formula includes fragrance (parfum) and the preservatives potassium sorbate and sodium benzoate, which some users consider controversial, although it does not contain harsh surfactants.

Joanna • 25 g

Joanna serum

Hair

Product Insights

Joanna serum is a 25 g hair care product formulated with a blend of botanical oils such as coconut, almond, macadamia and shea butter, which aim to moisturize and soften the hair shaft. The formulation also includes cetearyl alcohol, coconut alkanes, synthetic preservatives potassium sorbate and sodium benzoate, as well as fragrance, which may cause irritation for sensitive scalps. While the oil‑rich base can benefit dry or frizzy hair, the presence of fragrance and preservatives limits its suitability for very sensitive or allergy‑prone users.

Comparative Analysis

Positioned as an oil‑rich hair serum that targets dryness and frizz, it differentiates itself with a high proportion of natural carrier oils while still relying on common cosmetic preservatives and fragrance.

Ingredients

Aqua, Cocos Nucifera Oil, Coconut Alkanes, Cetearyl Alcohol, Behenamidopropyl Dimethylamine, Pronus Amygdalus Dulcis Oil, Macadamia Ternifolia Seed Oil, Butyrospermum Parkii Butter, Cetyl Esters, Cetyl Esters, Olus Oil, Lactic Acid, Tocopherol, Parfum, Potassium Sorbate, Sodium Benzoate, Tocopherol, Parfum, Potassium Sorbate, Sodium Benzoate

84%

35%

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