Propylene Glycol For Skin: Benefits, Side Effects, & How To Use

Medically Reviewed by Dr. Somodyuti Chandra, MBBS, MD DVL & DNB
By Arshiya Syeda

Propylene glycol is a popular ingredient in most skin care products. As it is one of the best hydrating agents, many prefer propylene glycol for skin dryness and dullness. You can find this ingredient in serums, hair sprays, moisturizers, toothpaste, and perfumes.

This popular ingredient helps the skin retain moisture and improve its texture. However, there are a few concerns regarding propylene glycol in skin care products.

That makes us wonder, is propylene glycol safe for all skin types? This article will answer all your queries about propylene glycol. Keep reading.

What Is Propylene Glycol? Is It Safe?

Propylene glycol is an odorless and colorless liquid known for its hydrating properties. It attracts and seals skin moisture. It is an excellent humectant and is used in many products, including moisturizers, shampoos, conditioners, and serums.

It helps improve skin texture and promotes the absorption of other ingredients. Propylene glycol is also used in other industries as a solvent, an emollient, a humectant, and a preservative (1).

But is propylene glycol safe for your skin? Contrary to what many believe, propylene glycol is safe for use unless you are allergic to it. The WHO has set its daily intake limit to 25 mg per kg of body weight (2). It is also approved as a safe additive to food by the FDA and completely safe for human use (3).

In the following section, we will see how this ingredient can benefit the skin.

Benefits Of Propylene Glycol For Skin

1. Helps Moisturize Skin

Propylene glycol is popular for moisturizing and smoothening the skin (1). Its light texture keeps the skin moisturized without feeling too heavy or sticky. It is ideally used in products made for dry and combination skin types, and skin that is parched or flaky. The humectant properties of propylene glycol attract water and seal it onto the outer skin layer.

Propylene glycol also works as an emollient and softens and soothes the skin (4).

2. May Improve Skin Texture

Propylene glycol protects your skin from excess dryness and prevents damage caused due to external oxidative factors. This may improve skin texture too. However, more research is warranted in this regard.

3. May Help Treat Acne

Moisturizers that are usually oily can aggravate acne. Propylene glycol is water-based, light in texture, and non-sticky – and can hence be safe on acne-prone skin. However, the acne-fighting properties of propylene glycol are yet to be studied.

4. May Prevent Premature Aging

There is limited research available here. But anecdotal evidence suggests that the natural moisturizing capabilities of propylene glycol may help reduce the signs of premature aging. Dry skin is more prone to flakiness, wrinkles, and fine lines. Propylene glycol may keep skin moisturized and prevent the signs of premature aging.

5. Promotes Better Absorption Of Other Skin Care Products

Propylene glycol is known to help the active ingredients present in other cosmetic products reach deeper into the skin, thus improving their efficacy and results (5).

6. Safeguards The Skin Barrier

Another lesser-known benefit of propylene glycol is it protects your skin barrier (6). The humectant properties of this ingredient can help safeguard the skin barrier, especially for people with skin conditions like eczema and psoriasis.

Since propylene glycol has so many benefits, it is easily one of the most used ingredients in many skin care and cosmetic products. However, it is often confused with ethylene glycol. But the two are completely different compounds. The following section discusses these differences.

Propylene Glycol vs. Ethylene Glycol

Propylene glycol and ethylene glycol are both known to be used as anti-freeze in many industries.

That said, ethylene glycol is severely toxic and may be completely unsafe for skin applications. Propylene glycol, on the other hand, has a very low level of toxicity and is safer for use. It is suitable for more skin types.

Though propylene glycol is the safer of the two, it still does have some side effects. We discuss the same in the next section.

Side Effects Of Propylene Glycol

  • People with eczema may develop irritation to propylene glycol. They are advised to do a patch test before utilizing products with this ingredient.
  • Continuous use of propylene glycol around your eye and nasal region may cause irritation.

After considering all its benefits and side effects, you may go for products containing propylene glycol if it suits your skin type. Here are the various ways you can use these products.

How To Use Propylene Glycol-Based Products On Your Skin?

Propylene glycol is a common ingredient in many skin and personal care products. You can include this ingredient in your skin care routine in multiple ways. Consider your skin type and skin concern before you go for it.

Propylene glycol is an excellent humectant and emollient. It will be a great ingredient in moisturizers made for parched and flaky skin. To utilize its moisturizing benefits, you can include a propylene glycol moisturizer in your routine.

Since propylene glycol also improves the absorption of other products, it can be a useful ingredient in cosmetic products like foundations, serums, cleansers, and acne treatments.

For better effects, you can utilize targeted skin care products with propylene glycol.

In the next section, we have listed some of the best propylene glycol products you can use.

Best Products With Propylene Glycol

1. Paula’s Choice Clear Extra Strength Skin Clearing Treatment with 5% Benzoyl Peroxide ($19):

This skin-clearing treatment is perfect for those with recurring acne and stress acne. The propylene glycol in the solution helps in the deeper penetration of benzoyl peroxide and more effective action. This product treats stubborn skin acne without making your skin dry.

2. Peter Thomas Roth Water Drench Hyaluronic Cloud Cream ($52)

This moisturizer is composed of propylene glycol, hyaluronic acid, pentavitin, and ceramides that replenish skin moisture. Its light texture is suitable for every skin type.

3. SkinCeuticals C + AHA ($136)

This highly raved product is known for its quick skin brightening results. The propylene glycol it contains boosts the penetration of the other ingredients in the serum – leading to better effectiveness.

Infographic: Additional Uses Of Propylene Glycol

Propylene glycol is one of the popular ingredients in the skin care industry. You can find this ingredient in several cosmetic products, including serums, moisturizers, toothpastes, hairsprays, and perfumes. It is also used as a flavoring agent and preservative in foods.

Check out the infographic below to learn more about the other uses of propylene glycol.

additional uses of propylene glycol [infographic]

Illustration: StyleCraze Design Team

Propylene glycol is present in many skin care products mainly because it helps skin retain its moisture and stay soft and smooth. But some believe using propylene glycol for skin is not safe as it is derived from petrolatum. However, it is safe to use on skin as the cosmetic-grade petrolatum is safer and more refined than commercially used petrolatum. Always perform a patch test before incorporating propylene glycol-containing skin care products to avoid any allergies. Consult a doctor immediately if you experience any allergic reactions or irritations.

Frequently Asked Questions

Does propylene glycol clog pores?

No, it does not clog pores. It may instead help unclog pores and improve skin texture.

Is propylene glycol the same as glycolic acid?

No, the two are not the same. Propylene glycol has to break down to form glycolic acid.

Is it okay to use propylene glycol every day?

Yes, you can use propylene glycol every day if you are not allergic to the ingredient.

Key Takeaways

  • Propylene glycol is the best hydrating agent and an excellent humectant that helps improve skin texture and retain moisture.
  • This odorless and colorless liquid may help treat acne, prevent premature aging, and protect the skin barrier.
  • Most people often confuse propylene glycol with ethylene glycol. Both are entirely different compounds.
  • Also, people with eczema may develop irritation to this compound. So, do a patch test before using products with propylene glycol.


Articles on StyleCraze are backed by verified information from peer-reviewed and academic research papers, reputed organizations, research institutions, and medical associations to ensure accuracy and relevance. Read our editorial policy to learn more.

  1. Propylene glycol
  2. Spectroscopic detection of brain propylene glycol in neonates: Effects of different pharmaceutical formulations of phenobarbital
  3. CFR – Code of Federal Regulations Title 21
  4. Propylene Glycol
  5. Effect of finite doses of propylene glycol on the enhancement of in vitro percutaneous permeation of loperamide hydrochlorid
  6. Influence of skin penetration enhancers on skin barrier function and skin protease activity
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Arshiya Syeda is an editor at StyleCraze. Prior to that, she was a content writer and combined her writing and... more

Dr. Somodyuti Chandra

Dr. Somodyuti is a board-certified dermatologist who specializes in skin, hair, and nail problems, laser surgery, and esthetic procedures. After... more