The Ordinary Skincare Guide: Best Serums for Every Skin Type

Navigating the world of skincare serums can feel overwhelming, especially with so many formulas promising radiant, healthy-looking skin. Whether you're dealing with dryness, dullness, or signs of aging, the right serum can make a meaningful difference in your routine. This guide focuses on one of the most celebrated serum categories — hydrating, skin-supporting formulas — to help you find the best fit for your skin type.

Why Serums Matter in Your Skincare Routine

Serums are lightweight, concentrated formulas designed to deliver active ingredients deeper into the skin compared to standard moisturisers. Because they tend to have a smaller molecular structure, many serums are formulated to work more efficiently at the skin's surface and beyond. Incorporating a well-chosen serum into your daily routine may help support skin hydration, improve texture, and address specific concerns like fine lines or uneven tone.

The key is matching the serum's active ingredients to your skin's unique needs. For example, those with dry or dehydrated skin often benefit from hyaluronic acid-based formulas, while those focused on anti-aging may look for serums that combine hydration with skin-replenishing ingredients like Vitamin B5.

Hydration Serums: A Foundation for Every Skin Type

Regardless of whether your skin is oily, dry, combination, or sensitive, hydration is a universal concern. Dehydrated skin can appear dull, feel tight, and even trigger excess oil production as the skin tries to compensate. This is why hydrating serums are often recommended as a foundational step for nearly all skin types.

Hyaluronic acid is one of the most well-known hydrating ingredients in skincare. It is a naturally occurring molecule in the skin that is known for its ability to attract and retain moisture. When used in a serum, it may help the skin feel plumper, smoother, and more comfortable throughout the day.

Best Serum for Sensitive and Mature Skin: La Roche-Posay Hyalu B5

For those with sensitive skin or skin showing early signs of aging, the La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Serum is a widely respected option. This serum is formulated with both hyaluronic acid and Vitamin B5 (panthenol), two ingredients that work together to support the skin's moisture barrier and promote a smoother, more supple appearance.

La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Serum Vitamin B5
La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Serum Vitamin B5
Key ingredients: Hyaluronic Acid, Vitamin B5, Anti-Aging, Oil-Free, Sensitive Skin
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La Roche-Posay is a brand with a long-standing reputation for formulating products suitable for reactive and sensitive skin. The Hyalu B5 serum is oil-free, making it a versatile option for those who prefer lightweight textures or who have combination skin. Many users report that it layers well under moisturiser and does not feel heavy or greasy after application.

Key Ingredients and Their Benefits


  • Hyaluronic Acid: A powerful humectant that may help draw moisture into the skin, leaving it feeling hydrated and comfortable.

  • Vitamin B5 (Panthenol): Known for its soothing and skin-replenishing properties, Vitamin B5 may help support the skin's natural barrier and reduce the appearance of surface dryness.

  • Oil-Free Formula: Suitable for those who prefer non-comedogenic options, particularly those with oily or combination skin types.

How to Use a Hydrating Serum

To get the most from a hydrating serum, apply it to clean, slightly damp skin before your moisturiser. This technique may help lock in additional moisture. A few drops are typically sufficient — gently press the serum into the skin rather than rubbing it in to avoid unnecessary friction, especially for those with sensitive skin.

Hydrating serums are generally suitable for both morning and evening routines. In the morning, follow with SPF to protect the skin. In the evening, layer your serum beneath a nourishing night cream or facial oil if desired.

Tips for Choosing the Right Serum for Your Skin Type


  • Dry Skin: Look for serums rich in hyaluronic acid and Vitamin B5 to help restore moisture and comfort.

  • Oily Skin: Opt for lightweight, oil-free formulas that hydrate without adding excess shine.

  • Sensitive Skin: Choose fragrance-free, dermatologist-tested formulas with minimal irritants. La Roche-Posay's range is often formulated with sensitive skin in mind.

  • Combination Skin: A balanced, oil-free serum may work well across both dry and oily zones.

  • Mature Skin: Serums combining hyaluronic acid with anti-aging support ingredients may help address the appearance of fine lines and loss of firmness.

Frequently Asked Questions

What is hyaluronic acid and why is it used in serums?

Hyaluronic acid is a naturally occurring molecule found in the skin that is known for its ability to attract and hold moisture. In serums, it is used as a humectant to help keep the skin feeling hydrated, plump, and smooth. It is generally well-tolerated by most skin types, including sensitive skin.

Is the La Roche-Posay Hyalu B5 serum suitable for sensitive skin?

Yes, the La Roche-Posay Hyalu B5 serum is formulated with sensitive skin in mind. It is oil-free and contains Vitamin B5, which is known for its soothing properties. As with any new skincare product, it is advisable to patch test before full application, especially if you have reactive skin.

Can I use a hydrating serum if I have oily skin?

Absolutely. Many people with oily skin are actually dehydrated, which can cause the skin to overproduce oil. A lightweight, oil-free hydrating serum may help balance moisture levels and reduce the appearance of excess shine over time. Look for non-comedogenic formulas to avoid clogging pores.

How often should I use a hydrating serum?

Most hydrating serums are formulated for daily use and can be incorporated into both your morning and evening routines. Apply after cleansing and before moisturising for best results. Always follow the specific guidance provided with your chosen product.

What does Vitamin B5 do for the skin?

Vitamin B5, also known as panthenol, is an ingredient known for its soothing and skin-replenishing properties. It may help support the skin's natural moisture barrier, reduce the feeling of tightness, and contribute to a smoother skin texture. It is commonly found in formulas designed for sensitive or dry skin types.

This article is for informational purposes only and does not constitute medical advice. Consult a dermatologist for personalized skincare recommendations.