Propylene Glycol & Vegetable Glycerine: Myths vs Facts (Ireland Guide)
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Propylene Glycol & Vegetable Glycerine: Myths vs Facts (Ireland Guide)
If you’re interested in skincare ingredients or making your own products at home, you’ve likely come across propylene glycol (PG) and vegetable glycerine (VG).
These two ingredients are widely used in creams, shampoos, lotions, soaps, and DIY formulations. However, they are often surrounded by confusion, half-truths, and myths that can mislead even experienced creators.
Let’s break down what’s true, what’s exaggerated — and why PG and VG are actually valuable ingredients in everyday products.
Myth #1: “PG and VG are harmful synthetic chemicals”
The Truth
Although their names may sound “chemical,” both substances are widely used in food and cosmetics and have been trusted for decades.
- Vegetable glycerine is often plant-derived and known for its moisturising properties
- Propylene glycol acts as a carrier, helping active ingredients absorb more effectively
Both are considered safe when used correctly and are approved under EU and FDA regulations.
Myth #2: “Vegetable glycerine is always better than synthetic glycerine”
The Truth
Vegetable glycerine is often preferred because it is:
- plant-based
- more environmentally friendly
- suitable for vegan formulations
However, in terms of performance, both types behave very similarly on the skin.
If you care about sourcing and natural ingredients, choosing high-purity vegetable glycerine (99.5%+) is a great option.
Myth #3: “Glycerine dries out your skin”
The Truth
Glycerine is a humectant, meaning it attracts moisture and helps retain it in the skin.
In extremely dry environments, it can draw moisture from deeper layers.
But in normal conditions (like most homes in Ireland), it helps hydrate and soften the skin.
👉 Pro tip:
Combine glycerine with oils or butters to “lock in” moisture and improve results.
Myth #4: “Propylene glycol is the same as toxic antifreeze”
The Truth
This is one of the most common misconceptions.
- Propylene glycol (PG) = safe, non-toxic, widely used in food and cosmetics
- Ethylene glycol = toxic, used in antifreeze
They are completely different substances.
PG is used as a solvent, stabiliser, and moisture-retaining ingredient and is safe when used within recommended limits.
Myth #5: “These ingredients are just fillers with no real benefit”
The Truth
In reality, PG and VG are functional ingredients that improve product performance.
- Glycerine hydrates and softens the skin
- Propylene glycol helps distribute and deliver active ingredients more effectively
They are not “fillers” — they are essential for making products work properly.
✔️ How to Use PG & VG in DIY Products
If you create your own cosmetics or DIY formulations, these ingredients are extremely useful.
Here are some basic guidelines:
- Use glycerine up to 10% concentration for skin-friendly results
- Use propylene glycol to dissolve active or aromatic ingredients
- Combine with natural oils for better skin nourishment
- Always choose high purity (99.5%+) ingredients
🌿 Final Thoughts
Propylene glycol and vegetable glycerine are widely used, safe, and highly effective ingredients when sourced correctly and used properly.
Don’t let myths confuse you — understanding what you use is key.
If you're making your own products, these ingredients give you flexibility, performance, and reliability to create something truly high-quality.
Looking for high-quality ingredients in Ireland?
Explore our food and cosmetic grade vegetable glycerine and propylene glycol with fast delivery nationwide.
👉 Shop now at VGPG.ie