You've spent time defining your curls or straightening your hair, and then a few minutes outside are enough for a multitude of frizz to appear? This phenomenon is particularly common in summer, on humid days, or before a thunderstorm.
Contrary to popular belief, frizz is not simply a matter of hair type. It is often a sign of a lack of hydration, weakened hair fiber, or an unsuitable hair routine.
The good news is that there are simple solutions to limit its appearance and keep hair smoother, more disciplined, and better defined, even when humidity is high.
In this article, discover why humidity causes frizz and how to effectively protect your hair daily.
Why does humidity cause frizz?
Hair naturally seeks water
Hair is largely composed of keratin, a protein capable of absorbing moisture present in the air.
When the atmosphere becomes humid, the hair fiber absorbs this water and swells. This reaction temporarily modifies its structure and disrupts its natural alignment.
Result:
- hair becomes less manageable;
- strands lift;
- curls lose definition;
- frizz appears.
The more humid the air, the more visible this phenomenon is.
Dry hair is the most affected
Naturally dry or dehydrated hair tends to absorb more external moisture.
Why? Because it tries to compensate for its internal lack of water.
This is particularly the case for:
- curly hair;
- frizzy hair;
- kinky hair;
- color-treated hair;
- heat-damaged hair.
Damaged cuticles promote frizz
The cuticle is the protective layer that surrounds the hair.
When it is weakened by:
- coloring;
- heating tools;
- UV rays;
- harsh washing;
it becomes more porous.
Hair then absorbs more ambient moisture, which promotes the appearance of frizz.
What factors worsen frizz?
Humidity is not always the only culprit.
Certain daily habits can accentuate the phenomenon.
Dehydrated hair
The more dehydrated the hair, the more strongly it reacts to humidity.
A well-hydrated fiber generally remains more stable in the face of climatic variations.
Overly aggressive shampoos
Sulfates and certain powerful cleansing agents can remove the natural protective film of the hair.
In the long term, this promotes:
- dryness;
- porosity;
- frizz.
Opting for gentle formulas helps preserve the natural balance of the hair fiber.
Friction
Classic towels, cotton pillowcases, or certain clothes can create friction that lifts the cuticle.
Hair then becomes more sensitive to humidity.
How to prevent humidity-related frizz?
Focus on good hydration
The first step is to maintain a good level of hydration in the hair fiber.
Properly hydrated hair absorbs less external moisture.
For this, it is advisable to:
- use a gentle shampoo;
- regularly apply a nourishing mask;
- use a leave-in treatment;
- protect lengths daily.
The goal is to maintain an optimal balance between hydration and nutrition.
Nourish hair to seal in hydration
Hydration alone is not always enough.
Vegetable oils help create a protective barrier around the hair fiber.
They contribute to:
- limiting water loss;
- reducing porosity;
- smoothing the cuticle;
- protecting against humidity.
Shaeri Hair Oil: an anti-frizz ally
Hair prone to frizz particularly appreciates treatments rich in vegetable oils.
Thanks to its formula composed of five complementary oils, Shaeri Hair Oil helps to:
- intensely nourish the fiber;
- improve hair flexibility;
- reduce the fluffy effect;
- protect lengths from humidity;
- provide more shine.
A few drops applied to the lengths and ends are often enough to discipline hair throughout the day.
This use is particularly interesting in summer or during very humid periods.
Adopt an adapted routine to limit frizz
Frizz is often the result of an overall imbalance in the hair.
A consistent routine provides more lasting results.
Step 1: gentle cleansing
Cleansing must respect the natural balance of the hair.
Shaeri Nourishing Shampoo cleans without drying and helps preserve the suppleness of dry, curly, or textured hair.
Step 2: nourish with a mask
Shaeri Intense Mask Treatment helps restore softness and nourishment to the lengths.
Its benefits:
- more flexible hair;
- better curl definition;
- less frizz;
- easier detangling.
Step 3: daily protection
Shaeri Daily Treatment helps maintain hydration between washes.
It is particularly useful for:
Hairstyles that limit frizz
Certain hairstyles allow better control of hair on humid days.
For example:
- braids;
- twists;
- low buns;
- loose plaits.
These hairstyles reduce friction and limit the exposure of lengths to humidity.
Mistakes that promote frizz
Brushing hair dry
This habit breaks curl definition and lifts the cuticle.
Using too much heat
Hair straighteners and very hot hair dryers gradually weaken the hair fiber.
Neglecting the ends
The ends are often the first to become porous and react to humidity.
Regular application of oil helps protect them better.
Using too many styling products
The accumulation of products can sometimes weigh down hair and disrupt its natural balance.
A simple and consistent routine often remains the most effective.
Frequently asked questions
Why does my hair swell as soon as it's humid?
The humidity present in the air penetrates the hair fiber, causing it to swell and promoting frizz.
Do curly hairs have more frizz?
Yes. Their naturally drier structure often makes them more sensitive to humidity.
Can vegetable oils reduce frizz?
Yes. They help smooth the cuticle and limit the absorption of humidity by the hair.
Can frizz be completely eliminated?
No, especially when humidity is very high. However, an adapted routine can significantly reduce them and better control hair.
