Hyaluronic Acid vs Glycerin: Which Humectant Is Best for DIY Moisturisers?

When you’re crafting your own skincare at home, choosing the right ingredients can feel like a high-stakes chemistry experiment. Among the most popular ingredients for hydration, two titans consistently rise to the top: hyaluronic acid and glycerin. If you’ve ever wondered about the debate of hyaluronic acid vs glycerin moisturiser, you’re not alone. Both are renowned humectants, meaning they have the incredible ability to attract and hold moisture, but they each bring a unique set of benefits to your DIY formulations. Whether you’re aiming for a lightweight serum or a rich, creamy lotion, understanding how these two ingredients work is the key to achieving that elusive, healthy glow.

In this guide, we’ll dive deep into the science behind these hydration heroes, comparing their performance, skin feel, and cost-effectiveness. By the end, you’ll know exactly which one (or which combination!) is best for your specific skin type and DIY goals. We’ll even share a professional-grade, beginner-friendly recipe that incorporates both, ensuring your homemade creations are as effective as anything you’d find on a high-end department store shelf. Let’s explore why the hyaluronic acid vs glycerin moisturiser choice is so important for your skincare routine.

What Is a Humectant?

Before we pit our two contenders against each other, it’s essential to understand the category they belong to: humectants. In the world of skincare formulation, a humectant is a substance used to reduce the loss of moisture. They are “water-loving” molecules that draw water from two primary sources. First, they pull moisture from the deeper layers of your skin (the dermis) up to the surface (the epidermis). Second, if the humidity in the air is high enough (usually above 70%), they can actually pull moisture from the environment directly into your skin.

Humectants are the foundation of any effective moisturiser because they provide the initial “drink” of water your skin cells crave. However, they are team players; while they attract water, they usually need to be paired with occlusives (like oils or waxes) to seal that moisture in. Without an occlusive layer, the water that a humectant brings to the surface can easily evaporate, a process known as trans-epidermal water loss (TEWL), which can actually leave your skin feeling drier than before. This is a crucial tip for any DIY formulator to remember!

What Is Hyaluronic Acid?

Hyaluronic acid (HA) is a naturally occurring polysaccharide found in the human body, particularly in our connective tissues, eyes, and skin. It has gained legendary status in the beauty industry because of its staggering ability to hold up to 1,000 times its own weight in water. In DIY skincare, we typically use HA in the form of a fine white powder or a pre-made 1% solution. It is usually produced through a process of bacterial fermentation, making it a vegan-friendly and highly “biocompatible” ingredient that the skin recognises and absorbs readily.

When you use hyaluronic acid vs glycerin moisturiser, you’re often choosing HA for its sophisticated skin feel. It creates a breathable, non-sticky film on the surface of the skin that provides an immediate plumping effect. Because it comes in different molecular weights—high, medium, and low—formulators can target different layers of the skin. High molecular weight HA stays on the surface to provide instant hydration and a smooth texture, while ultra-low molecular weight HA can penetrate deeper to support long-term moisture retention and skin elasticity.

What Is Glycerin?

Glycerin, also known as glycerol, is a simple polyol compound that has been a staple in skincare for centuries. It is a clear, odourless, and viscous liquid that is typically derived from vegetable fats like coconut or palm oil. While it might not have the “trendy” appeal of hyaluronic acid, glycerin is arguably the most effective humectant available to home formulators. It is a much smaller molecule than hyaluronic acid, which allows it to penetrate deeply into the stratum corneum (the outermost layer of the skin) to provide lasting hydration from within.

Beyond just attracting water, glycerin is a “skin-identical” ingredient, meaning it mimics the natural moisturising factors (NMF) already present in our skin. This makes it incredibly gentle and less likely to cause irritation, even for those with sensitive or compromised skin barriers. In a hyaluronic acid vs glycerin moisturiser comparison, glycerin often wins on pure performance and cost. It’s an affordable powerhouse that not only hydrates but also helps to strengthen the skin’s protective barrier and improve its overall resilience against environmental stressors.

Benefits of Hyaluronic Acid for Skin

Hyaluronic acid is a favourite for a reason. Here are four key benefits it brings to your DIY moisturisers:

• Intense Surface Hydration: HA provides an immediate “flood” of moisture to the skin’s surface, making it look instantly refreshed and dewy.
• Visible Plumping Effect: By filling the spaces between skin cells with water, HA helps to “plump up” the skin, which significantly reduces the appearance of fine lines and wrinkles.
• Lightweight and Non-Greasy: Unlike some oils, HA feels incredibly light on the skin. This makes it perfect for oil-free serums or lightweight summer moisturisers.
• Soothing Properties: HA has natural anti-inflammatory properties that can help calm redness and irritation, making it a great addition to after-sun or post-exfoliation treatments.

Benefits of Glycerin for Skin

Don’t let its humble reputation fool you; glycerin is a skincare workhorse with several unique advantages:

• Deep, Long-Lasting Hydration: Because of its small molecular size, glycerin penetrates deeper into the skin than many forms of hyaluronic acid, providing moisture that lasts throughout the day.
• Barrier Support: Glycerin helps to maintain the integrity of the skin’s lipid barrier, protecting it from irritants and preventing moisture from escaping.
• Exceptional Versatility: It is incredibly easy to work with in DIY recipes, as it is water-soluble and stable across a wide range of temperatures and pH levels.
• Cost-Effectiveness: Glycerin is significantly cheaper than hyaluronic acid, allowing you to create high-quality skincare on a budget without sacrificing results.

What You Need

Ready to try your hand at creating the ultimate hyaluronic acid vs glycerin moisturiser? This simple, effective recipe uses both humectants to provide multi-layered hydration. Here’s what you’ll need to get started:

• 70g Distilled Water (the base for your water phase)
• 5g Vegetable Glycerin (for deep, lasting hydration)
• 10g Hyaluronic Acid 1% Solution (for surface plumping and skin feel)
• 10g Jojoba Oil (a lightweight, non-comedogenic carrier oil)
• 4g Emulsifying Wax (to bind the oil and water together)
• 1g Broad-Spectrum Preservative (like Liquid Germall Plus, to keep it safe)

Step-by-Step Recipe: The Ultimate Hydration DIY Moisturiser

1. Sanitise Everything: Before you begin, thoroughly clean and sanitise your workspace, tools, and containers with 70% isopropyl alcohol. This is a critical step in any DIY skincare project to prevent bacterial growth.
2. Prepare the Water Phase: In a heat-safe glass beaker, combine the distilled water and vegetable glycerin. Stir gently until the glycerin is fully incorporated.
3. Prepare the Oil Phase: In a second heat-safe glass beaker, combine the jojoba oil and emulsifying wax.
4. Heat Both Phases: Place both beakers in a water bath (a shallow pan with an inch or two of simmering water). Heat until the oil phase is completely melted and both beakers have reached approximately 70°C.
5. Emulsify: Slowly pour the oil phase into the water phase while stirring constantly with a glass rod or a mini-mixer. You’ll notice the mixture turn white and creamy as the emulsion forms.
6. Cool Down Phase: Once the mixture has cooled to below 40°C, stir in the hyaluronic acid 1% solution and your broad-spectrum preservative. It’s important to add these heat-sensitive ingredients during the cool-down phase to maintain their efficacy.
7. Package and Store: Transfer your finished hyaluronic acid vs glycerin moisturiser into a clean, airtight pump bottle or jar. Label it with the date and the ingredients used.

Tips for Best Results

To get the most out of your homemade hyaluronic acid vs glycerin moisturiser, follow these simple tips:

• Apply to Damp Skin: Humectants work best when they have moisture to hold onto. Applying your moisturiser to slightly damp skin right after cleansing helps to lock in even more hydration.
• Layer with an Occlusive: If you have very dry skin, consider layering a few drops of a facial oil or a thin layer of an occlusive balm over your moisturiser to seal in all that water-based goodness.
• Store Correctly: Keep your DIY creations in a cool, dark place away from direct sunlight. This helps to preserve the integrity of the ingredients and ensures your preservative remains effective.

Safety and Patch Testing

When working with DIY skincare, safety is paramount. Always use a broad-spectrum preservative in any recipe that contains water, as water is the perfect breeding ground for bacteria, mould, and yeast. Additionally, even natural ingredients can cause reactions in some people. Before applying your new hyaluronic acid vs glycerin moisturiser to your face, perform a 24-hour patch test on a small, inconspicuous area of skin, like your inner forearm or behind your ear. If you notice any redness, itching, or irritation, discontinue use immediately.

Frequently Asked Questions

Can I use both hyaluronic acid and glycerin together?
Absolutely! In fact, we recommend it. Using both allows you to benefit from the immediate plumping and silky feel of hyaluronic acid alongside the deep, long-lasting hydration and barrier support of glycerin. They are a “power couple” in the world of skincare formulation.

Is glycerin better for dry skin than hyaluronic acid?
Glycerin is often considered superior for very dry or damaged skin because of its ability to penetrate deeper and its role in repairing the skin’s natural barrier. However, both are excellent choices, and for the best results, they should be used in conjunction with occlusive ingredients like oils and waxes.

Why does my hyaluronic acid serum feel sticky?
If your DIY serum feels overly sticky, it may be because the concentration of hyaluronic acid is too high, or it hasn’t been properly balanced with other ingredients. High molecular weight HA can also leave a slightly tacky film. Try reducing the concentration or pairing it with a lightweight oil to improve the overall skin feel.

Conclusion

The debate over hyaluronic acid vs glycerin moisturiser doesn’t have a single winner—it’s all about finding the right balance for your unique skin needs. Hyaluronic acid brings that luxurious, high-tech feel and instant plumping, while glycerin provides the deep, reliable hydration that keeps your skin healthy and resilient. By mastering the use of both, you can create DIY moisturisers that are truly professional-grade. Ready to experience the difference for yourself? Give our ultimate hydration recipe a try and start your journey to perfectly hydrated skin today!