10 Little-Known Divi Hair Serum Side Effects

Are you a lover of all things hair? If yes, then there’s little doubt you’ve heard about Divi hair serum or Divi hair serum side effects.

But if you haven’t, it is a popular light scalp serum infused with peptides, amino acids, vitamins, essential oils, and other ingredients.

Its manufacturer claims that it helps prevent hair thinning, nourishes your scalp, and removes the buildup of product in your hair.

As popular and well-liked as it is, there are also some Divi hair serum side effects that many people do not know about.

You get the chance to know all about these divi hair serum side effects if you read on so that you know what adverse reactions you should expect from using the product.

But first, let’s see if there is anything else we can learn about it.

What ingredients are in Divi?

Here are some of the main ingredients in the Divi hair serum formula:


Glycerin is a natural moisturizer that plays the role of nourishing dry skin.

It moisturizes and keeps skin lipids between your skin cells healthy and also protects your scalp against irritation by strengthening your skin barrier.

Glycerin is helpful for people with a dry scalp, especially when used in high concentrations of between 20% and 40%.

Ascorbic acid

This ingredient is popularly known as vitamin C.

It boosts your skin’s collagen production and treats hyperpigmentation.

Ascorbic acid works well with vitamin E and ferulic acid.

Additionally, if you use it under sunscreen, it will boost the UV protection abilities of the sunscreen.

Tea tree oil

Tea tree oil is scientifically known as melaleuca alternifolia.

It originates from Australia and has been used for about 100 years for its anti-inflammatory and antiseptic properties.

In this formula, it plays the role of protecting your scalp from bacterial and fungal infections.

Green tea extract

Green tea contains polyphenols which have antioxidant properties.

It also protects against UV damage, aside from being anti-inflammatory and anticarcinogenic.

Because of its anti-inflammatory properties, green tea extract makes this product suitable for people with rosacea and atopic dermatitis.

Copper tripeptide-1

This ingredient is a copper peptide complex that helps stimulate collagen production in your body to boost hair health.

It also improves hair growth by causing the enlargement of your hair follicles.

Additionally, it has antioxidant and anti-inflammatory properties.

Other ingredients present in this formula include caffeine, biotin, hyaluronic acid, menthol, arginine, aspartic acid, phenylalanine, and peppermint oil, among other minor ones.

Does Divi make your hair thicker?

According to its manufacturer, Divi serum has a potent formula of powerful ingredients that work together to ensure your hair grows in volume and length.

However, note that several other factors influence hair growth, such as genetics, how you treat your hair, and your lifestyle.

How long does it take Divi hair serum to work?

The manufacturer recommends three months of continuous use for you to realize the full benefits of divi hair serum.

Each day, you are to massage three-quarters of a dropper of the serum into your hair to see the active results of it.

Divi hair serum side effects

Here are 10 little-known Divi hair serum side effects the manufacturer may not have told you about.

#1. It can slow down your heartbeat

The peppermint oil content of divi hair serum makes it unsuitable for people with heart problems.

Peppermint oil has been reported to slow down the rate at which your heart beats, which makes it dangerous for people with cardiovascular problems.

Even if you do not have heart problems but are prone to them, you should consult a healthcare professional before you use this product.

#2. You may experience a tingling sensation

Potent serums that contain vitamin C can cause you to experience a tingling sensation on your scalp upon application.

While some people may not find this irritating, others find it highly uncomfortable.

Thankfully, this side effect subsides typically after a short while.

If it doesn’t, wash your scalp immediately to remove the serum.

#3. Your scalp can get dry

Divi hair serum is recommended for a dry scalp, but ironically, it can make your scalp even drier.

It contains tea tree oil which worsens dryness, especially for people with acne-prone skin.

So if you have acne or acne-prone skin, be aware that this serum can make your scalp even drier.

#4. You may experience abnormal breast growth

Did you know that using hair serums with tea tree oil puts you at risk of experiencing abnormal breast growth?

Now you do.

A study conducted in 2007 found that using hair serums with tea tree oil can cause breast growth in boys who have not reached puberty.

#5. It can worsen skin conditions

Skin conditions like seborrhoeic scalp dermatitis can get worse if you use divi hair serum.

The tea tree oil in it can cause redness and burning on your scalp, making your condition worse.

You can use gentler oils such as lavender oil in its stead. They can get you the desired results without being harsh to your scalp.

#6. It can cause a fungal infection

As counterproductive as this sounds, divi hair serum can make you develop a fungal infection on your scalp.

This is because it contains rosemary leaf extract, a known irritant that often triggers the growth of fungus on the scalp.

#7. Your blood pressure level might fall

This is one of the least known divi hair serum side effects.

Arginine, an ingredient used to make divi hair serum, can lower your blood pressure to below-optimal levels once your skin absorbs it.

#8. It can cause nausea

As unlikely as this sounds, you may get nausea after using this serum.

It contains eucalyptus oil, which can make you feel nauseated, especially if you use it in a concentrated form.

#9. It may result in seizures

One of the Divi hair serum side effects that you may find surprising is that it can cause you to develop seizures or worsen existing epilepsy.

Research reveals that it has epileptogenic properties, which can trigger seizures upon exposure.

This is especially likely in people with a history of or genetically predisposed to epilepsy.

#10. Your scalp may itch a bit

Some ingredients like hyaluronic acid can cause itching on your scalp after you apply Divi hair serum.

This is one of the Divi hair serum side effects that you should look out for if your scalp is sensitive.


It’s important to note that hair oil and hair serum differ fundamentally. Hair oil penetrates deeper and reaches the cortex of the hair strand. Hair oil restores hair damaged by heat and other environmental factors.

However, hair serum adds gloss and reduces freeze in the outer layer of the hair. It only works on the shaft and not the roots.

You shouldn’t use hair serum for prolonged times. In addition to the Divi hair serum side effects, leaving it on for too long leads to breakage, falling, and drying out of hair.

Divi hair serum is quite popular for its benefits to the hair.

However, you may not hear about Divi hair serum side effects as much as you do its benefits. You can use a homemade serum of avocado, jojoba, almond, argan, and grapeseed oil to avoid Divi’s side effects.

This article tells you everything you need to know about these side effects and the ingredients within the serum formula.

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