Rough, dull, or unmanageable hair... Many people think their hair is dry when it is actually dehydrated. Yet, these two hair problems are very different and are not treated in the same way.
Confusing dry and dehydrated hair can lead to using unsuitable products, gradually worsening the condition of the hair. Understanding the difference between these two states allows for adopting a targeted and truly effective routine, especially as summer approaches, a season that often accentuates these imbalances.
In this article, discover how to recognize dry or dehydrated hair, understand their causes, and choose the right treatments to restore flexible and shiny hair.
What is the difference between dry hair and dehydrated hair?
Before adapting your hair care routine, it is essential to understand what truly distinguishes these two issues.
Dry hair: a lack of nutrition
Dry hair is linked to a lack of natural lipids. The scalp produces little sebum, which deprives the hair fiber of its natural protection.
Characteristics of dry hair:
- rough texture to the touch
- lack of suppleness
- difficult to detangle
- frequent split ends
- dull appearance
- often thick or curly hair
Dry hair mainly needs nutrition, i.e., fatty substances to strengthen the hair fiber.
Dehydrated hair: a lack of water
Unlike dry hair, dehydrated hair lacks water, not lipids.
This situation can affect all hair types:
- fine hair
- thick hair
- oily hair
- normal hair
Signs of dehydrated hair:
- dull hair
- temporary dryness sensation
- frequent frizz
- loss of suppleness
- difficult to style hair
- frizzy or swollen appearance
Dehydrated hair mainly needs hydration.
Why this distinction is essential before summer
Summer strongly accentuates hair dehydration and dryness.
The impact of the sun on hair hydration
UV rays weaken the hair fiber and accelerate water loss.
This can cause:
- hair drying out
- loss of suppleness
- increased frizz
- dull hair
To learn more about this, read our latest article: How to prepare your hair for summer?
Preparing your hair beforehand helps limit these effects.
The effect of salt and chlorine
Seawater and chlorinated water aggravate hair dehydration.
These elements can:
- remove natural hydration
- weaken the hair fiber
- accentuate dryness
- make hair more brittle
Identifying your hair type allows you to adopt the right strategy before summer.
How to tell if your hair is dry or dehydrated
A few simple observations can help you identify your situation.
The touch test
Run your fingers through your lengths.
If your hair is:
- rough and brittle → probably dry
- supple but dull → probably dehydrated
Touch remains a reliable indicator to differentiate these two states.
The time test
Observe the evolution of your hair after a moisturizing treatment.
If the hair:
- improves temporarily → dehydrated hair
- remains rough despite hydration → dry hair
This test helps identify the real needs of the hair.
The visual test
The general appearance can also provide clues.
Dry hair:
- constant dull appearance
- split ends
- brittle hair
Dehydrated hair:
- frequent frizz
- frizzy appearance
- lack of suppleness
These observations help guide your routine.
Causes of dry or dehydrated hair
Understanding the origin of the problem helps to better correct it.
Causes of dry hair
Several factors can cause hair dryness.
The most frequent causes:
- insufficient sebum production
- naturally curly or textured hair
- repeated coloring
- excessive use of heating tools
- prolonged sun exposure
These elements gradually weaken the hair fiber.
Causes of dehydrated hair
Hair dehydration is often linked to external factors.
Frequent causes:
- pollution
- sun exposure
- hard water
- use of aggressive products
- too frequent washing
These factors accelerate water loss in the hair fiber.
How to effectively treat dry hair
Dry hair requires a nutrition-rich routine.
Intensely nourish the lengths
Nutrition helps strengthen the hair fiber and prevent breakage.
The Nourishing Shampoo, enriched with prickly pear oil and shea butter, helps to deeply nourish while gently cleansing.
Its benefits:
- intensely nourishes
- restores suppleness
- improves shine
- protects the lengths
Regular use gradually improves the quality of dry hair.
Limit external aggressions
Reducing aggressions helps prevent the worsening of dryness.
Useful actions:
- limit heating tools
- protect hair from the sun
- avoid too frequent washing
These habits help preserve natural nutrition.
How to effectively treat dehydrated hair
Dehydrated hair requires a different approach.
Regularly hydrate hair
Hydration helps restore suppleness and elasticity.
Good habits:
- use hydrating treatments
- avoid overly aggressive products
- maintain a regular routine
This approach quickly improves the appearance of the hair.
Purify the scalp to improve hydration
A saturated scalp absorbs moisturizing treatments less well.
The Pure Scrub helps to:
- eliminate residues
- improve absorption of treatments
- rebalance the scalp
Regular purification improves the effectiveness of moisturizing treatments.
Can you have both dry and dehydrated hair at the same time?
Yes, it is entirely possible to have both of these problems simultaneously.
This situation is common for:
- curly hair
- color-treated hair
- sun-exposed hair
In this case, it is necessary to:
- nourish the hair
- hydrate regularly
- protect the hair fiber
A comprehensive routine gradually improves hair health.
Common mistakes to avoid
Certain habits worsen dryness or dehydration.
Confusing nutrition and hydration
Using only oily treatments on dehydrated hair can weigh down the hair without solving the problem.
Identifying your needs is essential.
Using overly aggressive products
Harsh products can accentuate dehydration.
Reducing the frequency of washes can improve hair condition.
Frequently Asked Questions
How to quickly tell if my hair is dry or dehydrated?
Observe its reaction after a moisturizing treatment: a temporary improvement often indicates dehydration.
Can oily hair be dehydrated?
Yes, even oily hair can lack water.
Can dry hair be corrected naturally?
Yes, with an adapted nourishing routine, it is possible to gradually improve its condition.
Does summer worsen hair dryness?
Yes, sun, salt, and chlorine accentuate moisture loss.
