Ask how to choose a face serum and most answers list bestsellers. That is the wrong end of the problem. A serum is a single-purpose tool, so the first question is which purpose you are buying — not which bottle is popular.
What a serum actually is
A moisturiser is an emulsion with an occlusive job: hold water in, rebuild the lipid barrier. A serum is lighter, usually water- or gel-based, carries a higher proportion of active ingredients, and has almost no occlusive base. It does not replace a moisturiser. It goes underneath one.
Matching ingredients to concerns
| Concern | Ingredients worth looking for |
|---|---|
| Dehydration, tightness | Hyaluronic acid, glycerin, panthenol |
| Dullness, uneven tone | Vitamin C, niacinamide |
| Visible pores, oiliness | Niacinamide, zinc, salicylic acid |
| Fine lines, firmness | Peptides, retinoids |
| Redness, reactivity | Panthenol, allantoin, plant extracts |
One serum, one concern. A formula promising to fix everything usually contains a token amount of each.
When to apply serum
After cleansing and toner, before moisturiser, on skin that is still slightly damp. Then seal it with your cream.
By time of day:
- Morning — hydrating and antioxidant formulas: hyaluronic acid, niacinamide, vitamin C
- Evening — anything photosensitising: retinoids, acids, plus peptides
You can layer two serums, but not two strong actives on the same night if you are new to them.
Beginner mistakes
- Judging it in a week. Skin cells turn over across roughly a month. Give any serum four to six weeks.
- Applying it over cream. The occlusive layer blocks it.
- Starting three at once. Introduce one every three to four weeks, or you will never identify the culprit when irritation shows up.
- Using it instead of moisturiser. Especially on dry skin — without occlusion, the water leaves.
A note on ranges
Faberlic organises serums by series rather than by hero product, including the plant-based Botanica line and formulas built around its oxygen complex; the catalogue refreshes roughly every three weeks, so see the current catalogue on faberlic.com for textures and concentrations. More on routine order in the skincare section.
Finally, the honest limit: serums are cosmetics, not treatment. Persistent redness, breakouts or flaking is a reason to see a dermatologist, not a reason to buy a fourth bottle.