When it comes to delivering in-salon exceptional results, a hair diagnosis is the first step, as it allows you to identify the current state of the hair and then customize the treatments to achieve a flawless and risk-free outcome. By deeply understanding the hair needs, stylists can ensure that the experience in each session is effective and enjoyable.

Before moving on to the technical part, it is important to have a conversation with your client before the process to get their view on their hair’s condition. Ask them about their hair care habits, the products they use, and the treatments they have applied. Involving your client in this dynamic builds trust and ensures that they understand each step of the process.

Now, here are four key aspects to performing a successful hair diagnosis.

1. Measure hair diameter
The hair thickness directly influences its resistance and how it reacts to different treatments. Both fine and thick hair pose particular challenges. Fine hair tends to retain more oil, while thick hair may require more time to absorb products or react to coloring treatments. An accurate hair diameter measure allows treatments to be customized as per the specific needs of the hair.

2. Determine hair porosity
Hair porosity establishes its ability to absorb and retain moisture, which is crucial when planning any treatment. When hair is damaged, its porosity increases, making it vulnerable and prone to breakage. When sliding your fingers along the hair shaft and it feels smooth and shiny, the hair porosity is low and the cuticle is intact. However, if it is rough and dry, the porosity is high, indicating that the hair needs a repairing intervention before any other treatment.

3. Elasticity: Key to healthy hair
Hair elasticity reveals a lot about cortex health. Healthy hair is elastic and stretches without breaking; on the contrary, if a strand of hair breaks easily when you stretch it, it indicates that the hair is damaged or weak. Measuring hair elasticity is essential to determine if a repairing treatment is necessary before other more aggressive procedures, such as color treatment.

4. Detect traces of previous treatments
It is crucial to identify any residue from coloring products or previous treatments, as these can interfere with new products applied and alter the outcome. Knowing the client's prior treatments avoid unpleasant surprises and ensure that the right decisions are made to obtain the best result.
As a final recommendation, consider doing an allergy test on your new clients, it could avoid complications.
Are you ready to upgrade your hair services to the next level? An accurate diagnosis is the first step to success.