Is 15% L-ascorbic acid too strong for beginners?

It is a meaningful dose, and Prequel says the serum is not designed for sensitive skin. Start every other morning and build up if your skin tolerates it.

Can I use it with retinol or acids?

Use it in the morning and keep strong acids or retinol for another routine step or evening to limit irritation. Vitamin C layers well under sunscreen.

How should I store it?

Keep the bottle closed and away from direct sun and heat. L-ascorbic acid darkens as it oxidizes, so a deep orange or brown color means it is losing potency.

Is it safe during pregnancy?

Prequel lists it as suitable for pregnant or breastfeeding moms with a doctor's consult. Ask your doctor before adding any active serum.

At $22.99 at Target as of November 5, 2026, it is inexpensive for 15% vitamin C with ferulic acid and niacinamide. That makes it a low-risk way to try a strong brightening serum.

Where is the Prequel Lucent-C Vitamin C Serum cheapest?

At Target, for $22.99, as of our latest check.

Where can I buy the Prequel Lucent-C Vitamin C Serum?

2 stores we checked sell it, including Target, prequelskin.com.

Prequel Lucent-C Vitamin C Serum

Best price now

$22.99at TargetObserved at 12:44 PM

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Our take on the Prequel Lucent-C Vitamin C Serum

Prequel Lucent-C is a 30 ml daytime vitamin C serum built on 15% L-ascorbic acid, with niacinamide, ferulic acid, ergothioneine and inulin supporting brightness and the skin barrier. It is fragrance-free and non-comedogenic, aimed at dry and combination skin with dark spots. The best new price is $22.99 at Target as of November 5, 2026, and two stores list it new.