Hyaluronic Serum vs Vitamin C Serum: Which First?
By Ursa Major Skincare | Published: 2026-10-18
Category: Comparisons
Wondering whether to apply hyaluronic acid serum or vitamin C serum first? Here's the correct layering order and why it matters for your face serum routine.
Quick answer
Apply vitamin C serum first on clean, dry skin, then follow with hyaluronic acid serum. This order lets the brightening ingredients work at the right pH while the hydrating serum locks in moisture.
Why layering order matters for serums
The general rule in skincare is to apply products from thinnest to thickest consistency. But when comparing a brightening serum and a hydrating serum, pH also plays a role. Vitamin C serums are formulated to work at a lower pH, and applying anything before them can alter that environment and reduce effectiveness. Hyaluronic acid serums, on the other hand, are pH-neutral and designed to be layered over other treatments to pull in moisture.
What each serum actually does
A vitamin C serum targets uneven tone and dark spots. Ursa Major's Brighten Up Vitamin C Serum uses two stable forms of Vitamin C to even skin tone and lighten the look of dark spots while providing instant hydration. A hyaluronic acid serum is all about deep hydration. The Forest Water Hyaluronic Serum is a thirst-quenching formula that helps skin look plump and firm with a lightweight texture that absorbs easily. Both are valuable, but they work best when applied in the right sequence.
The trade-off: brightening first or hydrating first
- Vitamin C serum first: Apply a few drops of vitamin C serum to clean, dry skin. Let it absorb for 30–60 seconds before moving to the next step.
- Hyaluronic acid serum second: Follow with a hyaluronic acid serum on slightly damp skin (or after a toner) to help it draw moisture in. This locks in hydration without blocking the vitamin C. If your skin feels dry after vitamin C, a hydrating toner before the HA serum can help.
- Moisturizer and sunscreen: Finish with a moisturizer to seal everything in, and always wear sunscreen during the day when using vitamin C.
Product facts
- Brighten Up Vitamin C Serum: Contains two stable forms of Vitamin C to help even skin tone and lighten the look of dark spots. Applying this first ensures the active ingredients reach your skin at the correct pH for maximum brightening effect.
Brighten Up Vitamin C Serum - Forest Water Hyaluronic Serum: A thirst-quenching face serum designed to hydrate deeply, helping skin look plump and firm. Layering it after vitamin C seals in moisture without interfering with the brightening actives.
Forest Water Hyaluronic Serum
Which serum should you choose?
Best for
- Someone who wants to even skin tone and reduce dark spots while maintaining hydration
- Anyone building a complete face serum routine with both brightening and hydrating steps
Not for
- Those who prefer a single-step serum and don't want to layer products
- Very sensitive skin that may react to active ingredients like vitamin C
