The Right Way to Use Vitamin C Collagen Boosting Face Serum with Niacinamide (2026)

The face is still damp, the towel is over your shoulder, and nothing has been asked of you yet. This is the minute the serum belongs to. How to use Vitamin C Collagen Boosting Face Serum with Niacinamide in 2026, in one line: [amount] onto clean, [damp or dry] skin, pressed in before [moisturizer and/or SPF], [morning, evening or both].

The name tells you the useful part. Vitamin C and niacinamide share one bottle, so this is one step, not two. Turn it over and the list reads less like a lab than a harvest: aloe leaf juice before the vitamin C, and bilberry, sugar maple and cucumber after it.

How to Use Vitamin C Collagen Boosting Face Serum with Niacinamide

1. Start on clean skin. Wash, then pat the face [slightly damp or fully dry, from the Bible].
2. Dispense [number of drops or pumps]. That is enough for the face [and neck, if the Bible includes it].
3. Press it in. Warm it between the fingertips and [application motion from the Bible] across the cheeks, forehead and jaw.
4. Give it [wait time]. Let it settle before anything goes on top.
5. Finish the routine. Follow with [moisturizer], and in the morning with [SPF guidance from the Bible].

When to Use It: Your Vitamin C Serum Routine

The best way to use a vitamin C serum is the same way every day, at the same point in the routine. This one belongs [morning, evening or both], after cleansing and before [the next step from the Bible].

Use it [frequency from the Bible]. Because the niacinamide is already in the bottle, there is no second serum to fit around it.

What to Pair It With

[Marianella cleanser from the same routine]

[Why it comes first, from the cleanser's Bible: what it leaves the skin ready for.]

[Marianella moisturizer or face oil from the same routine]

[How it layers over the serum, from both Bibles: shared ingredients, order, what it adds.]

[Third Marianella product, if the routine holds one]

[Where it sits in the sequence and why, from its Bible.]

Pro Tips

Retire the second bottle

Vitamin C and niacinamide arrive together here, so the shelf can lose the separate niacinamide step [confirm against the Bible's layering guidance].

[Tip from the Bible's usage notes]

[One or two sentences.]

[Tip from the Bible's benefits notes]

[One or two sentences.]

The Vitamin C Collagen Boosting Face Serum with Niacinamide is $72 and waits on our website.

FAQ

What is in Marianella's Vitamin C Collagen Boosting Face Serum?

Deionized water, aloe leaf juice, lactobacillus ferment, ethyl ascorbic acid (vitamin C), niacinamide, extracts of bilberry, sugar cane, sugar maple, orange and lemon, sodium hyaluronate (hyaluronic acid), glycerin, cucumber extract and hydroxyethyl cellulose.

Can vitamin C and niacinamide be used together?

In this serum they already are: both are in the same formula, applied in one step. [Add any guidance for sensitive skin from the Bible.]

Should I use this vitamin C serum in the morning or at night?

[Answer from the Bible's usage section.]

How long does one bottle last?

[Bottle size and approximate uses from the Bible.]

How much does the serum cost?

$72, on our website.