NIOXIN Night Density Rescue Serum — Overnight Leave‑On Hair Thickening Treatment with Antioxidant Technology

This intensive nighttime serum uses Nioxydine(24) Technology — a concentrated antioxidant complex — to help neutralize free radicals on the scalp surface while you sleep. Dermatologically tested and designed by Nioxin, a salon brand with decades of research in thinning hair, this formula supports the visible look of improved hair density without rinsing. Apply at night as part of your evening routine to help reduce hair fall associated with scalp surface oxidation and encourage a healthier-looking scalp environment.

How does this serum work while I sleep?

The serum is a leave-on, overnight formula that delivers antioxidants directly to the scalp to help counteract surface oxidation. It supports the scalp’s nightly regeneration window so active ingredients can work uninterrupted.

• Targets free radicals on the scalp surface with an antioxidant blend.
• Leave-on texture absorbs overnight—no rinsing needed in the morning.
• Designed to fit into a simple bedtime routine for consistent use.

When can I expect to see results?

Visible improvement in the appearance of hair density can be seen with regular nightly use; many users report changes in weeks, with clearer results over months. Results depend on individual hair and scalp conditions and consistent application.

• Daily overnight application for best outcomes.
• Not an instant thickener—gradual improvement over weeks to months.
• Works in combination with a healthy scalp-care routine.

How do I apply the Night Density Rescue Serum?

Use the serum as part of your evening routine on dry or towel-dried scalp. Dispense the recommended amount, section hair if needed, and massage the product gently into the scalp; leave it on overnight and style normally in the morning.

• Apply nightly to the scalp—no rinsing required.
• Use sectioning for targeted coverage on thinning areas.
• Gentle massage helps spread the formula and improve contact with the scalp.

Is this serum safe for sensitive scalps and colored hair?

The formula is dermatologically tested and developed by a brand experienced in thinning-hair care, but individual sensitivities vary. If you have known scalp reactions or are undergoing medical treatments, consult a professional before use.

• Dermatologically tested to support general scalp tolerance.
• Suitable for use on color-treated hair in most cases.
• Patch-test if you have a history of scalp sensitivity.

Who this is for: Nioxin Night Density Rescue Serum is intended for people noticing reduced hair density or increased hair fall related to scalp surface oxidation who want an easy, leave-on nighttime solution. It's well suited to those who prefer a salon-backed, research-led brand and want to add an antioxidant-focused treatment to their scalp-care routine. If you seek rapid cosmetic volume from styling products, pair this serum with volumizing shampoos and styling aids for a fuller-looking finish.

Ingredients

ALCOHOL DENAT., WATER/EAU, CAFFEINE, PANTHENOL, FRAGRANCE/ PARFUM, MENTHOL, LAURIC ACID, PEG-40 HYDROGENATED CASTOR OIL, TOCOPHERYL ACETATE, PEG-35 CASTOR OIL, POLYSORBATE 20, BIOTIN, ZINGIBER OFFICINALE (GINGER) ROOT EXTRACT, PASSIFLORA EDULIS FRUIT EXTRACT, CITRAL, LIMONENE, CITRONELLOL, GERANIOL, LINALOOL.