What is a Face Serum & How to Pick the Right One for Your Skin Type?
If there is one product that can truly transform your skin, it's a serum. But with so many options on the market, it's easy to feel overwhelmed — or worse, to use one incorrectly and wonder why it isn't working. This guide cuts through the noise. What a serum actually is, how it works, and how to choose the right one for your skin.
What is a Face Serum?
A face serum is a lightweight, fast-absorbing formula designed to deliver high concentrations of active ingredients deep into the skin. Unlike moisturizers, which work closer to the surface to lock in hydration, serums are built with smaller molecules that penetrate further — targeting concerns at a cellular level.
A well-formulated serum can:
- Boost hydration from within
- Increase firmness and elasticity
- Brighten and even out skin tone
- Reduce fine lines and wrinkles
- Soothe irritation and strengthen the skin barrier
But not all serums are created equal. Effectiveness depends entirely on the ingredients inside — and the technology that delivers them.
Key Ingredients to Look For
-Hyaluronic Acid — A hydration powerhouse that helps skin retain moisture for a plumper, smoother appearance.
-Peptides — Short chains of amino acids that support collagen and elastin production, improving firmness over time.
-Vitamin C — Brightens skin tone and offers antioxidant protection against environmental damage.
-Niacinamide — Calms redness, minimizes pores, and helps balance oil production.
-Retinol — Speeds up cell turnover and smooths texture, though best introduced gradually.
-NAD⁺ (Nicotinamide Adenine Dinucleotide) — The hero ingredient at Intuisse. NAD⁺ supports energy production and cellular repair at a foundational level — addressing the root cause of aging skin, not just the surface signs.
How Does a Serum Work?
Your skin's outer layer is designed to protect you — which also means it blocks most ingredients from getting through. A properly formulated serum bypasses this barrier using smaller molecules and targeted delivery systems, reaching the deeper layers of the epidermis where it can:
- Activate cellular repair mechanisms
- Stimulate collagen and elastin production
- Reduce inflammation and oxidative stress
- Trigger hydration from within
- Encourage natural turnover of aging cells
If your skin feels dull, lacks firmness, or isn't responding to your routine — the missing piece is likely support beneath the surface.
How to Use a Face Serum
When do i apply?
- After cleansing, before moisturizer or SPF. Suitable for both morning and evening routines.
How do i apply?
Use 2–3 drops or two pumps. Gently press into the skin — don't rub. Wait 30–60 seconds before layering your next product, then follow with moisturizer to seal in the benefits.
What to avoid:
- Using too much — a little goes a long way
- Skipping days — results come from consistency
- Applying after thick creams or oils, which block absorption
At Intuisse, we recommend storing your NAD⁺ serum in a skincare fridge to preserve potency and keep every active ingredient stable and clinically effective.
Who Should Use a Face Serum?
Serums aren't just for mature skin. The right formulation can benefit every age — it's about choosing one built for your skin's current needs.
Teens & 20s — Lightweight hydration, oil control, and early protection against pollution and UV damage.
30s & 40s — Replenish cellular energy as NAD⁺ levels begin to decline, support collagen production, and address early fine lines.
50s and beyond — Target deeper signs of aging, revive dull or thinning skin, and reinforce the skin barrier.
The key isn't age — it's formulation. Look for proven science, clean ingredients, and delivery systems that actually work.
Frequently asked Questions:
-Can I use a serum every day? Yes. Most serums, including Intuisse, are designed for daily use morning and evening.
-Will it cause breakouts? Only if the formula isn't suited to your skin. Intuisse serums are non-comedogenic and free from pore-blocking ingredients.
How soon will I see results? Some notice visible changes within 10 days. Deeper improvements in firmness, elasticity, and brightness typically build over 4 weeks of consistent use.
-Do I still need a moisturizer? Yes. Serums treat deeper layers; moisturizers lock hydration in at the surface. Both are essential.
-Can I layer multiple serums? At Intuisse, we believe in less is more. One well-formulated serum is often more effective than layering several — overwhelming the skin rarely leads to better results.

Why does the right serum matter?
A serum is the most direct, targeted step in your skincare routine — delivering exactly what your skin needs, where it needs it most. The right one, built on credible science and clean formulation, can genuinely change how your skin looks and feels over time.
At Intuisse, our Active NAD⁺ Face Serum is designed to work with your skin's biology — not against it. Not overnight transformation. Sustained, cellular renewal rooted in real science.