Correct use of facial serum: a complete guide to healthy and glowing skin

What is a facial serum and why is it essential in your skin care routine?

Facial serum is one of the most advanced skin care products , the effectiveness of which clearly surpasses many traditional cosmetic products. Unlike facial cream, the main function of which is to create a protective barrier and “lock” moisture on the skin’s surface, serum is a concentrated complex of active ingredients that penetrates into the deep layers of the skin. This product is often called a “vitamin bomb for the face” because it can quickly and effectively solve problems such as wrinkles, skin dehydration, hyperpigmentation, acne, uneven skin tone or even loss of elasticity. Due to its extremely light but effective composition, facial serum is suitable for all skin types – oily, dry, sensitive or mature skin. With regular use of serum, the skin becomes clearer, smoother, more elastic and better protected from harmful environmental factors. If you are looking for a product that will help improve the condition of your skin in general, facial serum is a necessary step in your beauty routine. Choosing the right product, especially with ingredients like hyaluronic acid, vitamin C, retinol, or peptides, can help you achieve long-lasting, visible results. Facial serums are currently among the most recommended products by dermatologists and cosmetologists, and their benefits are felt after just a few weeks of use.

Why use serum?

Higher concentration of active ingredients (often 70% and more!)
Faster and deeper penetration into the skin
Less product gives more effect
Can be applied according to specific skin concerns
Perfectly complements moisturizers

However, it is very important to understand that a serum is not a stand-alone product – it must always be followed by a cream to "lock in" everything that the serum provides to the skin.

How to use facial serum correctly: step by step

Cleanse your skin – use a gentle cleanser according to your skin type.
Apply a toner – this will help the serum absorb better.
Drop the serum onto your fingertips – never apply it directly from the pipette to your face!
Gently massage into the skin of the face and neck - without rubbing hard.
Wait 30-60 seconds for it to absorb.
Use a moisturizer – it will help maintain the effects of the serum.
If you use it in the morning, SPF protection is a must!

✅ Pro tip: always apply serum with hyaluronic acid to damp skin, otherwise it can dry it out even more.

Active ingredients: what's hiding inside the bottle?

Every serum is unique, but there are a few “gold standards” worth looking for:

Hyaluronic acid – deep hydration, restoration of elasticity.
Niacinamide (Vitamin B3) – brightens, soothes, reduces rashes.
Retinol – anti-aging, skin renewal.
Vitamin C – collagen synthesis, protection against free radicals.
Peptides – provide firmness and elasticity.
Collagen – tones the skin and reduces sagging.

💡 Tip: One serum can contain several active ingredients, so choose according to your needs.

When to use serum: morning or evening?

Choosing the right time to use your facial serum is just as important as choosing the right product. The composition of the serum determines whether it should be used in the morning or evening, as some active ingredients are most effective at certain times of the day, and some can even harm the skin if used incorrectly.

🌞 Recommended serums for the morning: protection, moisture and radiance

1. Hyaluronic acid
Perfect for the morning as it helps to keep skin hydrated throughout the day. It is one of the best ingredients for hydration – it attracts and retains water in the skin, giving it plumpness, radiance and elasticity. Use on slightly damp skin, after toner and before cream.

2. Vitamin C
The king of the morning! It is a powerful antioxidant that protects the skin from harmful environmental influences – UV rays, pollution, free radicals. It also brightens the skin, reduces age spots and stimulates collagen synthesis. Be sure to apply SPF protection after the serum.

3. Niacinamide
A gentle yet highly effective ingredient that is perfect for your morning skincare routine. It regulates sebum production, minimizes pores, soothes the skin and has a light brightening effect. Can be combined with other morning serums.

4. Antioxidants (green tea, vitamin E, etc.)
A morning dose of antioxidants protects the skin from oxidative stress that accumulates throughout the day from the sun, stress, dust, or even light emitted from devices. They also help maintain youthful skin.

🌙 Recommended serums for the evening: repair and regeneration

1. Retinol (vitamin A)
One of the most effective ingredients in the fight against wrinkles and skin irregularities. It promotes cell renewal, reduces acne signs, pigmentation, stimulates collagen production. But! It is mandatory to use it in the evening, because it increases the skin's sensitivity to UV rays. Start with a low concentration and use 2-3 times a week.

2. Peptides
These are skin-building ingredients that help restore skin structure, improve elasticity, firmness, and reduce fine lines. Perfect for evening care, especially for mature skin, as it works best when the body is resting.

3. AHA/BHA acids (glycolic, salicylic, lactic)
Effective exfoliants that remove dead skin cells, cleanse pores, and brighten the skin. Since they increase sun sensitivity, they are best used only in the evening. Don't forget your SPF in the morning!

4. Nourishing serums (with oils, ceramides, squalene)
In the evening, the skin needs to restore everything it lost during the day: moisture, lipids, protection. Nourishing serums with natural oils or nourishing extracts are a great choice – especially in winter or for mature, dry skin.

🧡 Evening serums often have stronger formulas, so choose them carefully, especially if your skin is sensitive or you are starting a new product.

The most common mistakes when using facial serum: what to avoid?

Even the most expensive or highest quality facial serum may not give the desired results if used incorrectly. To ensure that your skincare routine is effective and safe, it is essential to avoid certain common mistakes. Here are the TOP 6 mistakes that many people make - along with explanations of why they are dangerous for your skin.

❌ Serum is applied to dry skin (especially with hyaluronic acid)

This is one of the most common mistakes, especially when using hyaluronic acid serums. Hyaluronic acid acts as a “moisture magnet,” so if your skin is dry, it will start to draw water not from the outside, but from the deep layers of your skin – the result? Your skin will become even drier, flaky, or feel tight.

✅ Solution: Always apply serum to slightly damp skin, for example after toner or mist. This will help the serum absorb into the face effectively and provide the desired moisturizing effect.

❌ Excessive amount of serum used

Unlike creams, only a few drops of facial serum are needed – usually 2-3 drops are enough for the entire face and neck. Applying too much:

The product is difficult to absorb,
Can clog pores,
The skin may feel sticky or even irritated from excess active ingredients.

✅ Less is more. Use minimal amounts, and if you need an extra effect, it's better to layer serums rather than multiplying one.

❌ Serum is used without moisturizer

Facial serums are not meant to be used alone. They do not have “locking” properties, so if you don’t use a cream after the serum, all the moisture and active ingredients can quickly evaporate from the skin. This is especially important when using water-based serums.

✅ Be sure to use a face cream after the serum, preferably a moisturizing or regenerating one. This way you will "lock" all the benefits into your skin.

❌ Serum is used at the wrong time (e.g. retinol in the morning)

Some active ingredients, such as retinol and AHA/BHA acids, should be used strictly at a certain time of day. Retinol in the morning can increase the skin's sensitivity to UV rays, which can cause redness, pigmentation or even burns.

✅ Use retinol serum only in the evening, and choose brightening or moisturizing serums (e.g. with hyaluronic acid or niacinamide) in the morning.

❌ Pipette touches skin – bacteria risk

This is a habit that needs to be broken. When the pipette touches your face, it can leave bacteria, sebum, and dirt on it – all of which can get back into the bottle, contaminate the product, and shorten its shelf life.

✅ Instead, apply serum to your fingertips or palm, then gently spread over your face. It's more hygienic and safer.

❌ No SPF (sun protection) used

If your serum contains vitamin C, retinol, or acid, SPF protection in the morning is a must. Otherwise, UV rays can not only negate the benefits of the serum, but also cause skin damage, pigment spots, or even skin aging.

✅ Always finish your morning routine with a creamy SPF with SPF30+, especially if your facial routine includes active ingredients.

⚠️ Avoid these mistakes, and your skin will definitely thank you!

How to choose a facial serum according to your skin type?

While facial serums are a miracle cure, they will only work if they are right for your skin. Even the most expensive product may not be beneficial if it is not for you. So let's take a look at how to choose the right one.

Dry and sensitive skin

People with dry and sensitive skin often experience a feeling of tightness, tightness, redness, or even tingling. This type of skin requires:

Deep moisture to restore skin's moisture balance.
Soothing ingredients that reduce irritation and redness.
Minimal irritants – avoid fragrances, alcohol, and other potentially irritating substances.

🔍 Look for these ingredients:

Hyaluronic acid – intensely moisturizes and maintains moisture balance.
Aloe vera – soothes and moisturizes the skin.
Panthenol – promotes skin regeneration and reduces irritation.
Xylitol complex – helps retain moisture in the skin.
Chamomile extract – has anti-inflammatory properties and soothes the skin.

We recommend:

Oily and acne-prone skin

Oily skin is often shiny, has enlarged pores, and is prone to acne and blackheads. It needs:

Sebum regulation to reduce excess oil.
Anti-inflammatory properties that help fight acne.
Light texture so as not to weigh down the skin or clog pores.

🔍 Look for these ingredients:

Niacinamide – regulates sebum secretion and reduces pores.
Salicylic acid – cleanses pores and reduces the appearance of acne.
Tea tree extract – has antibacterial properties, helps fight acne.
Green tea extract – soothes the skin and reduces inflammation.
Zinc – regulates sebum production and has anti-inflammatory properties.

We recommend:

Combination skin

Combination skin is characterized by an oily T-zone (forehead, nose, chin) and dry cheeks. It needs products that:

Balances moisture levels to keep dry areas hydrated and oily areas free from congestion.
Regulates sebum secretion in the T-zone.
It has a light texture so as not to weigh down the skin.

🔍 Look for these ingredients:

Xylitol – helps retain moisture in the skin.
Marine collagen – strengthens the skin and provides elasticity.
Niacinamide – regulates sebum secretion and reduces pores.
Aloe vera – soothes and moisturizes the skin.
Seaweed extracts – nourish and moisturize the skin.

We recommend:

Mature skin (35+)

Mature skin is characterized by loss of elasticity, wrinkles, age spots and reduced radiance. It needs:

Firming to make skin look more youthful.
Stimulating collagen synthesis to reduce wrinkles.
Protects against oxidative stress to prevent further aging.

🔍 Look for these ingredients:

Peptides – strengthen skin structure, reduce fine wrinkles.
Retinol – promotes skin cell renewal.
Collagen – improves skin firmness and elasticity.
Vitamin C – lightens pigment spots and adds radiance.
Squalane – nourishes and protects against dryness.

We recommend:

Normal and dull skin

Even if your skin doesn't have any obvious problems, a routine without a serum is like a diet without vitamins. Your skin needs support, protection, and extra radiance.

🔍 Look for these ingredients:

Vitamin C – brightens and gives skin radiance.
Hyaluronic acid – moisturizes and plumps.
Glycerin – retains moisture in the skin.
Arbutin – helps to even out skin tone.
Rice extract – gentle but very effective for brightening.

We recommend:

How to use facial serums according to the seasons?

Your skin changes with each season, so your serum needs change with the season. The right product at the right time = fewer problems and more radiance.

❄️ WINTER: protection and nourishment

In winter, when the air is cold and dry and the heating is on indoors, the skin quickly loses moisture, becomes rough, sensitive, red or even starts to peel. At such a time, the serum must not only moisturize, but also restore the skin barrier, protect against temperature changes and help the skin maintain vitality.

🔎 Recommended ingredients:

Squalene is a natural lipid component that protects and nourishes.
Panthenol – known for its soothing and restorative properties.
Oils (argan, jojoba, linseed) – nourish and create a protective layer.
Collagen – improves firmness and restores elasticity.
Ceramides – help strengthen the skin barrier and retain moisture.

🌷 SPRING: detoxification and balance

After a long winter, skin often looks tired, gray, and dull. It's time to help your skin renew itself, cleanse itself of toxins, and regain its natural glow.

🔎 Look for these ingredients:

Vitamin C is a powerful antioxidant that lightens age spots and brightens skin .
Niacinamide – balances skin tone, reduces redness.
Green tea – cleanses, soothes, and has anti-inflammatory effects .
Zinc – helps reduce acne and regulates sebum.
Seaweed – provides minerals and moisturizes naturally.

☀️ SUMMER: protection and freshness

Summer is a pleasant time of year, but not always for the skin. Heat, sweat, sun and salt (e.g. from the sea) are challenges that cause the skin to lose moisture, become more sensitive and more prone to pigmentation. At this time, you need:

Light, quickly absorbed consistency,
Antioxidant protection against UV,
Additional hydration,
SPF cream after serum is a must!

🔎 Recommended ingredients:

Hyaluronic acid – intense but lightweight moisture.
Vitamin C – protection against free radicals and brightening.
Green tea – soothes and acts as a natural antioxidant.
Aloe vera – cools, soothes, moisturizes.

🍂 AUTUMN: recovery and preparation for cold

Autumn is a time for restorative care, deep hydration, and preparation for the upcoming winter.

🔎 Look for these ingredients:

Hyaluronic acid – restores moisture balance.
Collagen – helps fight the first wrinkles.
Peptides – strengthen the skin structure.
Oil serums – nourish, protect and help restore.

Facial massage with serum: why is it worth it?

Facial massage with facial serum is not only a pleasant and relaxing self-care practice, but also a particularly effective way to improve the effectiveness of facial serum . Massaging the skin activates blood circulation, which improves the skin's supply of oxygen and nutrients, and the active ingredients of the serum penetrate deeper and work more intensively. Regular facial massage with hyaluronic acid, collagen or vitamin serum stimulates the synthesis of collagen and elastin , which is especially important for more mature skin, in order to maintain firmness, elasticity and reduce wrinkles. Massage also helps reduce facial swelling, improves lymph flow and promotes the removal of toxins - this gives the skin radiance and freshness. In order to avoid skin stretching and irritation, it is necessary to choose a facial serum with an oily or slippery texture , which will allow fingers or massage tools (e.g., a gua sha stone or a rose quartz roller) to easily move over the surface of the skin. The recommended massage direction is from the center of the face outwards and upwards, following the lymphatic flow. Just a few minutes of massage with serum per day can noticeably improve the appearance of the skin, reduce signs of fatigue and enhance the effects of facial care products used. This is a simple but extremely effective way to take care of your facial skin at home.

👆 What do you need to know?

Use oil-based serums or light moisturizers.
Move in the direction of lymph flow – from the center outwards, from the chin upwards.
Massage gently with your fingertips or a gua sha stone.

Long-term results: when and what to expect?

Don't expect an overnight miracle! But with the right use of serums, results will definitely come – here's what you might notice:

📆 After 1 week: skin looks more hydrated, less tight

📆 After 2-3 weeks: improved texture, less redness, radiance

📆 After 1 month and more: wrinkles, pigmentation decrease, skin becomes firmer

✅ When used consistently and properly, serums become the foundation of a long-term beauty routine.

So, why is it worth choosing a serum from Bonnie.lt?

Wide selection for different skin types and needs
Only trusted, high-quality brands such as ANUA, Beauty of Joseon, COSR, BOM and other leaders in the K-beauty market.
Detailed, clear product descriptions make choosing easy even for a beginner.
Excellent value for money

👉 View the full range of serums here

Correct use of facial serum: a complete guide to healthy and glowing skin

What is a facial serum and why is it essential in your skin care routine?

How to use facial serum correctly: step by step

Active ingredients: what's hiding inside the bottle?

When to use serum: morning or evening?

🌞 Recommended serums for the morning: protection, moisture and radiance

🌙 Recommended serums for the evening: repair and regeneration