Hair extensions and keratin-containing care products: A balancing act between care and hair breakage

With hair extensions, we repeatedly encounter an interesting phenomenon in our day-to-day salon work: When combining extensions with keratin-containing care products, customers report increased hair breakage. These observations — based on customer and manufacturer feedback — should serve as an impetus to provide information on the optimal care approach. The aim is to provide a well-founded understanding without presenting the discourse as irrefutable truth.
Special features of hair extensions
Hair extensions, often made from high-quality human hair, offer the opportunity to design the volume and length of your own hair according to individual wishes. However, they differ from natural hair in several aspects, which requires appropriate care.
Structure and processing:
- Origin and treatment: Extensions usually come from donors and go through various processes such as cleaning, coloring, and texturing to ensure a consistent look. These treatments can affect the hair's natural protective layer, making it more susceptible to external influences.
- Missing root connection: In contrast to natural hair, which is continuously supplied with nutrients and sebum from the scalp, extensions lack this direct connection. As a result, they do not get any natural oils that provide softness and shine.
Porosity and elasticity:
- Changed porosity: Chemical treatments can increase the porosity of the hair, which means that it absorbs moisture faster but also releases it more quickly. This can result in dryness and brittleness if adequate moisture is not added.
- Reduced elasticity: The structural changes can impair the elasticity of the hair, making it less stretchy and more susceptible to hair breakage, particularly when exposed to mechanical stress such as brushing or styling.
Care requirements:
- Special products: Because of the differences mentioned, the use of care products that have been specially developed for extensions is essential. These products are designed to meet the specific needs of hair extensions without affecting the attachment points.
- Gentle treatment: It is advisable to care for extensions using gentle methods to extend their lifespan. This includes carefully detangling with suitable brushes, avoiding excessive exposure to heat and regularly adding moisture through masks or leave-in products.
Interactions: keratin products and extensions
Caring for hair extensions requires special attention, especially when it comes to the use of products containing keratin. While keratin treatments aim to strengthen and repair hair structure, they can cause unwanted effects on extensions.
How keratin products work:
- Strengthening hair structure: Keratin is a natural protein that gives hair strength and elasticity. Keratin treatments are intended to repair damaged hair by replacing lost protein and smoothing the hair surface.
- Formation of disulfide bridges: Through chemical processes, the natural disulfide bridges in hair are strengthened or reformed, resulting in improved stability and smoothness.
Possible effects on extensions:
- Excessive protein intake: Since extensions have already been treated through various processes, the additional supply of keratin can lead to an overload. This can make hair stiff and brittle, making it more susceptible to breakage.
- Change in hair texture: The application of keratin products can change the original texture of the extensions, especially if they have been chemically treated or dyed beforehand. This can result in an uneven appearance.
Impact on attachment points:
- Weakening of connections: The chemical components in keratin treatments can affect the adhesive or bonding areas of the extensions, which can cause premature loosening or slipping.
- Residues and deposits: Some keratin products leave behind residues that can build up at the attachment points and affect their integrity.
Recommendations for handling keratin products for extensions:
- Using specialized products: It is advisable to choose care products that are specifically designed for use with extensions and offer a balanced level of protein and moisture.
- Professional advice: Before using keratin treatments, a specialist should always be consulted to assess the suitability for the specific extensions and to weigh up potential risks.

Individual advice: The key to optimal care for your extensions
Caring for hair extensions requires a customized concept that is tailored to the specific needs of your hair and extensions. A personal consultation in our salon gives you the opportunity to develop the ideal care routine together with our experts.
Why is individual advice important?
- Uniqueness of your hair: Everyone's hair is different in structure, density and condition. Our specialists analyse your natural hair and the extensions you use to make the best possible care recommendations.
- Customization of products: Not all care products are suitable for every hair extension. During the consultation, we identify the optimal products that nourish your extensions without affecting the attachment points.
- Preventing damage: Improper care can result in hair breakage, tangles, or premature loss of extensions. With professional guidance, you can minimize these risks.
What can you expect during a consultation in our salon?
- Detailed hair analysis: We assess the condition of your hair and extensions to identify specific needs.
- Individual care routine: Based on the analysis, we create a care plan that is tailored to your daily habits and the requirements of your hair extension.
- Product recommendations: We suggest high-quality care products that have been specially developed for extensions and optimally support your hair.
- Application tips: Our experts will show you washing, drying, and styling techniques to ensure the longevity and beauty of your extensions.
Benefits of professional advice:
- Long-term satisfaction: With the right care, your extensions will retain their natural radiance and integrity for longer.
- Preventing problems: By identifying potential care errors at an early stage, we can take preventive measures together.
- Expert support: Our specialists are always available to answer any questions or uncertainties and will guide you on your journey to healthy, radiant hair.
Conclusion
Personal advice is essential to ensure optimal care for your hair extensions. Our expertise helps you to maintain the beauty and health of your extensions over the long term. Book an appointment at our salon today and experience the difference that professional support can make.
About the author

Sandra von Gneisenau
Sandra, the founder of the Sandra von Gneisenau Salon, sees professional skill combined with a special feel for each individual as one of the core elements of her craft in her role as managing director and stylist. Early in her career, she earned her master hairdresser qualification and took on management positions in exclusive salons in Munich. Her work with clients from Germany and abroad has shaped her understanding of quality and close client relationships. Her clients include national and international celebrities, among them well-known figures from film, television, social media and public life, who come to her because of her expertise, her discretion and their trust in her skills. Her training and hands-on experience allow her to work at the highest level and to understand and realize her clients' wishes precisely. In her articles, she offers deep insights into her professional expertise and her experience with a wide range of clients, making her a well-informed advisor on beauty and finding your personal style.
You can find more information about Sandra and her career here
About Sandra
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