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Dry, brittle hair, or hair stressed by colouring and heat, does not automatically need the richest possible formula. With keratin hair care, it is important to match the product type, ingredients and application to your hair’s actual needs. A keratin hair treatment can improve manageability, while a leave-in product is more practical before styling. Shampoo and hair oil, meanwhile, serve different purposes.
Keratin may be listed as Hydrolyzed Keratin, Cocoyl Hydrolyzed Keratin or combined with amino acids. The complete INCI list on the packaging is what matters. If keratin appears towards the end of the list, its concentration may be lower than in products that prominently promote it. Plant proteins such as wheat or rice protein should not be equated with animal-derived keratin.
The hair fibre consists of material that has already been keratinised. A keratin hair mask can smooth the surface and temporarily make the hair feel softer. However, split ends will not grow back together. For a visible improvement in hair structure, regular care, gentle detangling and less mechanical or heat stress are therefore key.
A very rich keratin hair mask is not suitable for every hair type. Fine or quickly greasy hair can lose volume through heavy oils, silicones or protein treatments used too frequently. Pay attention to the recommended processing time and start intensive products with one application per week.
For hair care for damaged hair, hydrolysed keratin, amino acids, panthenol and cationic conditioning agents can help make the hair surface easier to care for. For dry hair, glycerine, plant oils and other moisture-binding ingredients may also be useful. For colour-treated hair, gentle acidic formulas and products focused on colour protection may be worthwhile.
The product information should also include details about fragrances, allergens and preservatives. If you have a sensitive scalp, check the complete ingredients list. Stop using the product if irritation occurs.
Apply masks and treatments mainly to the lengths and ends. The roots normally need less conditioning and can look greasy more quickly when rich formulas are used. Apply a leave-in to towel-dried hair and do not rinse it out. A few drops are often enough when using hair oil. Always follow the application instructions on the packaging.
Why this product suits this profile: This classic hair mask is suitable for anyone looking for straightforward care for dry and brittle hair. According to the product information, it should be used once or twice a week for two to three minutes.
The specific processing time and recommended frequency help prevent the mask from being used for unnecessarily long periods or too often.
250 ml pack; according to the ingredients list, contains hydrolysed keratin and shea butter.
Why this product suits this profile: According to the ingredients list, the formula combines hydrolysed keratin, amino acids such as lysine and histidine, as well as argan, jojoba and almond oils.
The stated processing time of five to ten minutes makes application more predictable than broad promises without dosage guidance.
Designed for weekly use; contains several conditioning oils and protein components.
Why this product suits this profile: For anyone who regularly blow-dries or straightens their hair, a leave-in with a stated heat-protection rating is practical. The product description specifies protection up to 230 °C, as well as keratin and a complex of 17 amino acids.
The temperature rating is clearly specified. Even so, make sure your hair is completely dry and use the lowest suitable styling temperature.
150 ml; according to the application instructions, it can be used on towel-dried or dry hair and does not need to be rinsed out.
Why this product suits this profile: This two-phase spray is designed for care after washing. According to the product information, spray it onto towel-dried hair from a distance of 15 to 20 cm and do not rinse it out.
The spraying distance and application to towel-dried hair help prevent too much product being concentrated in individual areas.
200 ml; leave-in format for daily care of the lengths and ends.
We have compiled a complete, regularly updated list of products that fully meet these strict selection criteria and the safety regulations applicable in the EU.
A simple routine could look like this:
It depends on the formula and your hair type. Many products recommend using them once or twice a week. For fine hair, starting with once a week is sensible. If your hair feels stiff, dull or difficult to comb, reduce how often you use the product or alternate it with moisturising care.
In principle, products containing keratin, amino acids and conditioning oils may be beneficial for colour-treated hair. However, check whether the specific product is explicitly designed for colour-treated hair. A gentle shampoo and a leave-in focused on colour protection can complement your routine. Hair care cannot extend the lifespan of your colour indefinitely.
The effect of a mask or leave-in is generally affected by washing your hair and by further exposure to friction, moisture and heat. Cosmetic hair-care products should not be expected to repair hair permanently. The key factors are using the right amount, applying the product regularly and handling your hair gently.