You may get surprised to know that caffeine works beyond waking you up in the morning. It is also said to offer benefits related to hair maintenance.
However, there are advocates both in favor and against the use of caffeine for hair health. While it has many benefits, others are not in favor of using it. Although, results depend on an individual’s hair type and preferences.
Dermatologists believe caffeine in shampoo is harmful to hair in the long-term. Therefore, it is important to understand caffeine shampoo side effects for hair before you opt to use it.
This article covers everything related to caffeine’s cons towards hair health.

Caffeine shampoo is a hair care product that contains caffeine as its active ingredient, along with cleansing agents like laureth sulfate. It offers potential hair benefits using caffeine extracts from coffee beans or synthetic caffeine.
Is Caffeine Shampoo Good For Hair?

Despite its popularity, caffeine shampoo is not a good option for hair. Many individuals may have experienced good results. However, this lasts for a very short time.
While its long-term results have come under massive scrutiny, leading many users to stop using it. Therefore, many dermatologists believe that the cons of caffeine shampoo outweigh its benefits.
What Are Caffeine Shampoo Side Effects?

Caffeine shampoo side effects for hair growth often occur together. Hence, making it an obvious option for treating hair loss.
While caffeine shampoo benefits are limited, its side effects are playing a major role in hair health. Therefore, it is important to consider its potential complications especially for sensitive scalps.
So, how long do caffeine shampoo side effects last for hair? Here is the answer:
Common Side Effects
The following side effects are common and experienced by more than 75% individuals. Users can witness these with caffeine shampoo before and after comparison.
- Dryness & Irritation: Caffeine strips the hair and scalp of their natural oils, causing dryness, itchiness and irritation. Although, you can use natural oils to minimize it, but this works only for a shorter period.
- Redness & Inflammation: Caffeine’s stimulatory effects can cause redness and Inflammation!. Increased inflammation may also lead to excessive hair fall.
- Itchiness & Flakiness: As dryness increases, it leads to an itchy scalp. This turns into flakiness and dandruff when exposed to caffeine for longer.
- Hair Breakage: Excessive use of caffeine shampoo can cause hair breakage, especially if you already have fragile or damaged hair.
- Hair Discoloration: Individuals having light hair color may experience a change in hair color.
Uncommon Side Effects
Around 35% of individuals experience these side effects when they wash their hair with a shampoo containing caffeine as its main ingredient.
- Allergic Reactions: Individuals who are allergic to caffeine may experience allergic reactions, such as hives, itching or swelling in the head.
- Scalp Conditions: Using caffeine shampoo can enhance underlying issues such as eczema, psoriasis, or dermatitis.
- Hair Loss: Excessive use of caffeine shampoo can lead to hair loss.
- Drug Interactions: If you are taking medications, such as blood thinners, always consult your doctor before using caffeine shampoo due to potential drug interactions.
Rare Side Effects
Less than 10% of individuals experience the following issues from using a caffeine shampoo.
- Caffeine Toxicity: Excessive and regular use of caffeine can lead to caffeine toxicity, causing symptoms such as jitteriness, anxiety, and rapid heartbeat.
- Scalp Infections: Caffeine can worsen the condition if you have an already infected scalp.
What Are Caffeine Shampoo Contraindications?
Caffeine shampoo effects for hair dandruff needs careful consideration, as it can cause some serious side effects. Hence, it is important to stay vigilant to avoid further complications.

Here are some contraindications to caffeine shampoo:
- Sensitive Scalp: Individuals with sensitive scalp should avoid using it as it may result in irritation and redness.
- Hair Treatments: Caffeine shampoo may interact with certain hair treatments, such as hair dye or perms.
- Pregnancy & Breastfeeding: It is always recommended to consult a medical practitioner before using caffeine shampoo during pregnancy or breastfeeding.
- Children & Pets: Keep your caffeine shampoo out of reach of children and pets. As it may cause accidental ingestion or exposure.
- Medical Conditions: Avoid using caffeine shampoo if you are suffering from high blood pressure or anxiety disorders.
Frequently Asked Questions
Does caffeine shampoo make your scalp itchy?
Yes, caffeine shampoo can make your scalp itchy. This is common if caffeine concentration is too high or you are having a sensitive scalp.
Does caffeine shampoo darken hair?
Yes, some caffeine shampoos have repigmentation technology that can make your hair appear darker. However, this is a short-term solution.
How often should I use caffeine shampoo?
Although manufacturers recommend daily use, dermatologists suggest using a caffeine shampoo 3-5 times a week.