Strengthening Booster

Yours Truly

Strengthening Booster

Strengthening and fortification for damaged, brittle hair

  • Strengthens the hair fibre and protects against further damage
  • Prevents hair breakage and noticeably improves resilience
  • For strong, supple hair with renewed hold and resilience
Find your Yous Truly Salon here

This product is salon exclusive and can only be purchased at Yours Truly Salons.

The Strengthening Booster is the targeted strengthening treatment for hair that has been stressed by colouring, heat styling, or chemical treatments. Hydrolyzed Wheat Protein PG-Propyl Silanetriol combines two active principles in one molecule: hydrolysed wheat protein fills in damaged areas of the hair fibre and strengthens the structure from within, while the silicone component seals the hair surface and protects against further external factors. Simply mix into shampoo or leave-in cream – for noticeably stronger, more resilient hair from the very first use.
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Not tested on animals

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Since 2013, animal testing for cosmetic products and their ingredients has been prohibited by law in the EU – and that's a good thing. But for us, that's not enough: we are actively campaigning for these standards to apply worldwide and to be enforced.

That's why we only work with partners who share the same values – for responsible hair care that does not involve animal suffering.
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Vegan

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Our hair care products contain no animal ingredients whatsoever – out of love for animals and the environment. Plant-based power meets salon quality. For healthy, beautiful hair – without compromise.
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Natural origin*

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True care begins with trust—in what we put on our hair. At Yours Truly, every formula is based on selected ingredients of natural origin—gentle on the scalp, effective for the hair. In carefully balanced combinations, they unfold their full caring power without weighing down the hair or causing unnecessary stress.

* Calculated according to ISO 16128. Proportion varies depending on the product.
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Clean Beauty

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We only use high-quality ingredients and deliberately avoid questionable substances such as certain sulfates, parabens, palm oil, and chemical sun filters. This means maximum compatibility for your hair, your scalp, and the environment.
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Dermatologically tested

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To ensure that you can rely on our products, they are dermatologically tested and reviewed by independent experts—even sensitive scalps benefit from our gentle, skin-friendly formulations.
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Application step

Cleanse

The first step on the way to healthy-looking hair: cleansing removes residue, excess oil, and styling product build-up from the hair and scalp. Only on clean hair can conditioning ingredients work deeply, styling products take effect properly, and finishes reveal their full potential.

Choose your perfect product

Other Cleanse products

Complete the application

Further application steps

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Care

Care moisturizes the hair, strengthens the hair structure, and protects against external influences. This keeps the hair supple, color-intensive, and resilient. A well-cared-for hair base is essential—it makes all the difference in styling and durability.

Zu den Care Produkten
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Style

Every look starts with the right shape: styling adds structure, volume, or smoothness to the hair—just as you wish. At the same time, it protects against heat and friction and adds texture or shine. The three hold levels make selection easy and ensure lasting results.

Zu den Style Produkten
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Finish

The final step completes every look. Whether you want natural bounce or maximum control, finishing products set your style, protect your hair, and add shine. Depending on the hold level, your hairstyle will remain flexible, retain its shape, or stay completely in place—all day long.

Zu den Finish Produkten
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Yours truly

Beautiful hair can be so easy.

Yours Truly stands for hair care that's finally easy again – clearly structured, effective, and without unnecessary frills. The 4-step system brings structure to your routine and makes healthy, beautiful hair easily attainable. Each formula combines natural care with professional performance – for hair that feels great.

More about Yours Truly