Hyaluronic acid is the ultimate hydrating, power-plumping miracle for youthful-looking skin. Our new Booster Serums are packed with high-performance ingredients to supercharge your skincare routine for instant, visible results. This hydrating serum is a true multitasker: it locks in moisture, improves skin texture, and relieves irritation, making it perfect for soothing dry or sensitive skin. With 3% active ingredients (95% of which are naturally derived), it includes 0.5% active hyaluronic acid, 0.5% active PENTAVITIN™, and 2.5% active provitamin B5 – a dream team for soft, plump, and hydrated skin.

Kind to Skin Promise:

Like all Simple products, our Booster Serum is dermatologically tested, non-comedogenic, and free from harsh chemicals, alcohol, mineral oils, artificial colors, and perfumes. It's also PETA-approved and vegan.

How to Use: Shake, drop, dab – it's that easy! After cleansing, apply our non-sticky, non-greasy serum on its own or mix a few drops into your favorite moisturizer for a quick hydration boost. It’s great under makeup too. For extra benefits, try combining it with our 10% Vitamin C + E + F Booster Serum in the morning (don't forget your SPF) and the 10% Niacinamide (B3) & B5 Booster Serum in the evening. Just remember to use them at different times, as niacinamide and vitamin C work best when applied separately.

Why People Love It: 81% agreed their skin felt instantly soft, 80% said it looked healthier, and 3 out of 4 reported feeling instantly hydrated. The stats speak for themselves, so give it a try and let us know what you think by leaving a review!