Based on its formula, is this shampoo safe for sensitive or dry scalps?

The shampoo is free of silicone and uses milder surfactants like lauryl glucoside, but it also contains sodium coco‑sulfate and fragrance allergens (limonene, linalool, citral); therefore it is generally well‑tolerated by normal hair types but may cause irritation for very sensitive or dry scalps.

What is the role and benefit of caffeine in this shampoo?

Caffeine is included to stimulate micro‑circulation in the scalp, which can help reduce hair loss and promote a feeling of refreshed, fuller hair.

What is the optimal application frequency for this shampoo, and does it contain any controversial chemicals?

It can be used 2–3 times per week or daily depending on personal preference; the formula contains sodium coco‑sulfate, a sulfate that can be drying for some hair types, and fragrance components such as limonene and linalool that some users find irritating, but it does not contain silicones or animal‑derived ingredients.

Alterra • 200 ml

Alterra Koffein-Shampoo

Hair

Product Insights

Alterra Koffein-Shampoo is a 200 ml vegan, silicone‑free shampoo packaged in a plastic bottle. It combines caffeine, biotin and panthenol with mild surfactants such as lauryl glucoside to invigorate the scalp and help strengthen hair. However, the formula also includes sodium coco‑sulfate, fragrance (parfum) and fragrance allergens like limonene, linalool and citral, which may cause irritation for very sensitive skin, and the plastic packaging is not biodegradable.

Comparative Analysis

Positioned as a vegan, silicone‑free caffeine shampoo, it differentiates itself from conventional shampoos by emphasizing natural extracts and biotin while still relying on surfactants such as sodium coco‑sulfate.

Ingredients

Ingredients: Aqua, Sodium Coco-Sulfate, Lauryl Glucoside, Glycerin, Cocamidopropyl Betaine, Lauroyl Sarcosine, Caffeine, Xanthan Gum, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Glucose Glutamate, Alcohol*, Coffea Arabica Seed Extract*, Panthenyl Ethyl Ether, Panthenol, Paullinia Cupana Seed Extract*. Biotin, Levulinic Acid, Citrus Paradisi Peel Oil, Parfum**, Limonene**, Linalool**, Benzyl Sailcylate**, Citral**

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