Kaunea  

Face serum: hyaluronic acid, vitamin C or retinol? Buying guide

Updated on 27/09/2026 · Editorial staff Kaunea

Choosing a face serum is one of the fundamental steps in the daily skin care routine. Needs vary according to age, skin type and individual goals, such as hydration, radiance or reduction of signs of aging. Knowing the differences between the main ingredients helps to select the most suitable product.

Hyaluronic acid, vitamin C, retinol and other active ingredients are often offered in specific serums, each with its own characteristics. Finding your way among the different formulations and brands requires attention to details, composition and intended use, so as to incorporate the most suitable serum into your routine.

Products in this guide (prices observed on 27/09/2026)
ProductPriceReviews
Retinol complex Siero viso men 30 ml — Siero visoRetinol complex Siero viso men 30 ml
Retinol complex
4.92 €—View
Retinol Complex Ultra Lift Nutriente al Siero di Vipera 50 ml — Crema visoRetinol Complex Ultra Lift Nutriente al Siero di Vipera 50 ml
Retinol complex
4.92 €—View
The Doctor Niacinamide + Zinc Siero Viso 30 ml — SieroThe Doctor Niacinamide + Zinc Siero Viso 30 ml
The doctor
5.63 €—View
Bioelixire Siero Semi di Nigella 50ml — Siero visoBioelixire Siero Semi di Nigella 50ml
Bioelixire
4.05 €—View
Revox Just Soluzione Mantenimento Idratazione Acido Poliglutammico 30ml — Siero Revox Just Soluzione Mantenimento Idratazione Acido Poliglutammico 30ml
Revox
5.61 €—View
Selective OnCare 50ml — Siero per cuoio capellutoSelective OnCare 50ml
Selective
14.81 €—View

How to choose face serum according to your needs

Face serum should be selected by evaluating your skin type and specific needs. Dry or dehydrated skin benefits from moisturizing serums, while combination or oily skin may prefer light and rebalancing formulas. Age is also important to consider: young skin requires prevention, mature skin needs support against signs of aging. A consultation with an expert can help identify the most suitable active ingredient, avoiding combinations that are not well suited to your skin condition.

Main ingredients: hyaluronic acid, vitamin C, retinol and others

Among the best-known ingredients in face serums are:

The choice of the main active ingredient depends on personal goals and individual tolerance.

Common mistakes and usage tips

A common mistake is choosing a serum based only on trends, without considering the real needs of the skin. Combining too many active ingredients can also cause irritation. It is advisable to apply the serum on cleansed skin, preferably before moisturizer. Consistency of use and compliance with the instructions on the package are essential to obtain visible benefits over time.

Product sheets

Retinol complex Siero viso men 30 ml

Retinol complex · 4.92 €

For whom: Suitable for men who want a specific face serum, ideal for those seeking daily skin support.

Formulated for male skin, it stands out for its practicality and compact format.

View product

Retinol Complex Ultra Lift Nutriente al Siero di Vipera 50 ml

Retinol complex · 4.92 €

For whom: Recommended for those seeking a nourishing and supportive skin treatment, with attention to lifting action.

The presence of viper serum suggests a formula designed for mature skin.

View product

The Doctor Niacinamide + Zinc Siero Viso 30 ml

The doctor · 5.63 €

For whom: Suitable for those with combination or blemish-prone skin, or who want a rebalancing serum to counteract skin imperfections.

Combines niacinamide and zinc, often chosen for their rebalancing action.

View product

Bioelixire Siero Semi di Nigella 50ml

Bioelixire · 4.05 €

For whom: For those who prefer ingredients of natural origin and seek a nourishing and protective serum.

Contains nigella seeds, known for their emollient and protective properties.

View product

Revox Just Soluzione Mantenimento Idratazione Acido Poliglutammico 30ml

Revox · 5.61 €

For whom: Ideal for those who wish to maintain a good level of skin hydration, even in case of dry skin.

Polyglutamic acid is known for its moisturizing power.

View product

Selective OnCare 50ml

Selective · 14.81 €

For whom: Designed for those seeking a specific treatment for the scalp, not suitable as a face serum.

Formulation dedicated to scalp care.

View product

Frequently asked questions

Can face serum replace moisturizer?

Face serum has a complementary function to moisturizer. It is advisable to use them together to achieve a more complete action.

When should face serum be applied in the daily routine?

Serum should be applied after cleansing and before moisturizer, both morning and evening, following the product instructions.

Can multiple serums be used together?

It is possible to alternate or combine multiple serums, but attention must be paid to the compatibility of the active ingredients to avoid skin irritation.

Summary

Choosing a face serum requires attention to your own needs and the composition of products. Ingredients such as hyaluronic acid, vitamin C and retinol offer different benefits, but must be selected according to skin type and personal goals. A consistent and informed routine helps to enhance results over time.