Good Night, Grey™ — Overnight Hair Serum

Good Night, Grey™ is the first-ever overnight treatment designed specifically for aging hair. It works with your scalp’s natural circadian rhythm to reduce stress-related damage, support pigment production, and strengthen follicles—while you sleep.

Think of it as night cream for your scalp.

At night, your body shifts into repair mode: stress hormones like cortisol drop, inflammation decreases, and cells become more receptive to restoration. This is when the scalp is most primed to recover from daily stressors like UV exposure, oxidative damage, and nutrient depletion.

Good Night, Grey™ is designed to take advantage of this window—supporting pigment production, extending the growth phase, and repairing damage that contributes to greying and thinning.

Good Night, Grey™ uses a blend of peptides, antioxidants, and plant extracts to address the biological drivers of greying at night, when follicles are most active.

It helps:

• Reduce cortisol-related damage that disrupts pigment production
• Support melanocyte activity during the growth phase
• Repair oxidative stress that accelerates greying and thinning

Both products target greying at the scalp—but at different times and through different mechanisms.

• To The Root® is a daily, daytime serum focused on reducing oxidative stress and supporting pigment at the follicle during waking hours.
• Good Night, Grey™ is a nighttime-only treatment designed to work with your body’s repair cycle, addressing stress hormones, inflammation, and overnight follicle recovery.

They can be used together for 24-hour scalp support.

Good Night, Grey™ is powered by clinically studied actives, including:

• Spirulina Maxima & Chlorella Emersonii Extracts – Helps block cortisol receptors, reduce stress-related hair loss, and support overnight cellular repair.
• Mela-9® Complex (Patented) – Stimulates melanin synthesis, neutralizes free radicals, and helps preserve pigment at the follicle.
• Red Clover Flower Extract + Biomimetic Peptide – Rich in biochanin A which reduces follicle inflammation and improves anchoring and growth.

Yes. Independent clinical studies on key ingredients in Good Night, Grey™ demonstrated measurable improvements in pigment, density, and follicle health:

• 89% improvement in the ratio of active growth to shedding phase with Red Clover Flower Extract + Acetyl Tetrapeptide-3
• 25.9% increase in anagen recovery and 11% improvement in density with Spirulina & Chlorella Extract Complex
• 47% of participants saw fewer white hairs in 3 months with Palmitoyl Tetrapeptide-20 Amide
• 40% boost in melanin levels in grey hair after 4 months with Ononis Spinosa & Avena Strigosa Extracts

With consistent nightly use, most people begin seeing visible improvements within 3–6 months, including:

• Fewer new greys
• Thicker, fuller hair growth
• Reduced shedding
• Softer, shinier strands

As with all hair biology, results depend on consistency and where you are in the greying process.

At night, shake well and apply the nozzle directly to the scalp, gently squeezing to distribute product on areas of concern from the hairline to the back of the head. Massage with your fingertips or the Arey Scalp Brush to distribute evenly.

Do not rinse. This is a leave-in treatment.

No. Good Night, Grey™ is oil-free, fast-absorbing, and residue-free once dry. It won’t weigh hair down or leave buildup on your scalp, pillow, or sheets.

Yes. By helping extend the anagen (growth) phase and supporting follicle anchoring, Good Night, Grey™ can reduce shedding and promote thicker, fuller-looking hair over time.

Yes. Good Night, Grey™ is color-safe and does not contain dyes or pigments. It supports your hair’s natural color rather than altering it.

Yes. The formula is lightweight and suitable for all hair types and textures, including fine, wavy, curly, and chemically treated hair.

Absolutely. Good Night, Grey™ fits seamlessly into your routine and pairs well with Not Today, Grey, To The Root®, and the Shower Duo for a comprehensive approach to aging hair.

Yes. Good Night, Grey™ is vegan, cruelty-free, dermatologist-tested, and scented with 100% natural lavender and eucalyptus for a calming nighttime ritual.