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5 Toxic Ingredients in Hair Products to Avoid and Medication's Effects on Hair Health

Updated: May 7, 2023

Our hair is often considered one of our most important physical attributes. It’s a symbol of beauty, youth, and vitality, and many people spend a significant amount of time and money trying to keep their hair looking its best. However, certain medications and toxic ingredients in hair products can harm our hair health.

Medications and Hair Loss

Hair loss is a common side effect of many medications, including chemotherapy drugs, beta-blockers, antidepressants, and blood thinners. These medications can interfere with the normal growth cycle of hair follicles, leading to hair loss or thinning.

Chemotherapy drugs, for example, are designed to kill rapidly dividing cells, including cancer cells. Unfortunately, hair follicle cells also divide rapidly, and as a result, chemotherapy can cause hair loss. This type of hair loss is usually temporary, and hair will typically grow back once the treatment is finished.

Other medications, such as beta-blockers and blood thinners, can also cause hair loss. These drugs affect the body’s hormonal balance and circulation, which can lead to hair loss or thinning.

Toxic Ingredients in Hair


In addition to medications, certain ingredients in hair products can have toxic effects on our hair and overall health. Some of the most common toxic ingredients in hair products include:

  1. Parabens are preservatives commonly used in hair products to prevent the growth of bacteria and mold. However, parabens have been linked to hormonal imbalances, which can lead to hair loss.

  2. Sulfates: Sulfates are used in shampoos and other hair products to

create a lather and remove dirt and oil. However, they can strip the hair of its natural oils, leading to dryness, breakage, and hair loss.

  1. Formaldehyde: This is a preservative that is commonly used in hair straightening products. However, formaldehyde has been linked to cancer and can cause hair breakage and loss.

  2. Phthalates: These are plasticizers that are commonly used in hair products to improve their texture and fragrance. However, phthalates have been linked to hormonal imbalances and can cause hair loss.

  3. Propylene glycol: This is a common ingredient in hair dyes and other hair products. However, propylene glycol can cause scalp irritation, hair loss, and damage to the hair follicles.


Hair loss and damage can be caused by a variety of factors, including medications and toxic ingredients in hair products. If you are experiencing hair loss or thinning, it is important to speak with your healthcare provider to determine if your medications may be contributing to the problem. Additionally, it’s important to choose hair products that are free from toxic ingredients, such as parabens, sulfates, formaldehyde, phthalates, and propylene glycol, to maintain healthy hair THOS haircare and THOS Awake Skin is plant-based and takes a more natural approach. By taking steps to protect your hair health, you can keep your locks looking their best for years to come.

Learn more about the Natural alternatives at PT2 of our Wellness Works event this Sunday, June 11th, 2023. grab your tickets below, you will not be disappointed.

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