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Davines Natural Tech Overnight Serum
Returns & Exchanges
RETURN & EXCHANGE POLICY
You have 10 calendar days to return an item for EXCHANGE ONLY from the date you received it. As the purchaser you would be responsible for return shipping charges.
Final sale items are not eligible for exchange or store credit. Final Sale items include Litres, Litre Duos, Clearance, Last Chance, Hot Tools, Hair Accessories, Brushes, Combs, Nail Polishes, Nail Accessories, Hair Extensions, and Appliances.
To be eligible for a exchange:
- your item(s) must be either be unused or no more than a quarter of the volume missing.
- your item(s) must be in the original packaging.
- your item(s) need to have the receipt or proof of purchase.
STEP 1 - Complete the online return form in full. Incomplete forms will not be accepted: Click here to download a return form
STEP 2 - Ship your item(s) back to us. You are responsible for return shipping charges. Shipping costs are non-refundable.
STEP 3 - We will immediately notify you on the status of your exchange after inspecting your returned item(s)
STEP 4 - You can exchange your item(s) or receive an online shop credit in the form of an e-gift card
In the event that you cannot find a suitable exchange a merchandise credit for the same value of the product purchased will be issued to you in the form of a store credit. Store credits cannot be redeemed for cash or refunded. You will receive your e-gift card within 5 business days after the exchange is confirmed
RETURNING TO A ZENNKAI SALON LOCATION
Should you prefer to return your online purchases to a location near you, come visit us! Simply bring your items and proof of purchase to our salons, following our set out Exchange Policy.
Final sale items are not eligible for exchange or store credit. Final Sale items include Litres, Litre Duos, Clearance, Last Chance, Hot Tools, Hair Accessories, Brushes, Combs, Nail Polishes, Nail Accessories, Hair Extensions, and Appliances.
If you are not fully satisfied with your purchase we will EXCHANGE it within 10 days with proof of purchase. EXCHANGE OR STORE CREDIT ONLY, NO CASH REFUNDS.
Hair Tools & Appliances
Zennkai provides a 1 year warranty on electrical tools with a manufacturer defect. They can be exchanged within one year of original purchase date, with proof of purchase and in its original packaging/box.
All electrical tools may be returned for exchange only due to manufacturer defect, with proof of purchase and all original components. No exchanges will be given without proof of purchase. Items must be in the original box/packaging. In the event that you cannot find a suitable exchange a merchandise credit for the same value of the product purchased will be issued to you in the form of a store credit.
Hot Tools & Appliances are a FINAL SALE unless manufacturer defect and are not eligible for exchange or store credit.
Shipping
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are nonrefundable.
Contact Us
If you have any questions on how to return your item to us, contact us via email at zennkai@megahairfamily.com.
Corporate Office
310-5491 REGENT ST
BURNABY BC V5C 4H4
Email: zennkai@megahairfamily.com
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Hair repair happens on a biological schedule — and that schedule runs overnight. During sleep, the scalp and hair shift into their natural regeneration cycle: cell turnover increases, sebum production recalibrates, and the follicle environment becomes most receptive to treatment actives. Davines ENERGIZING Overnight Serum is built around that chronobiology — a lightweight, leave-in serum applied to the scalp and lengths before bed that works with the body's natural rhythm rather than against it. The formula is clinically shown to deliver 3x more visibly fuller-looking hair overnight² and is 3x more effective at reducing breakage² vs. untreated hair, while simultaneously hydrating the scalp, strengthening fragile strands, boosting overnight regeneration, and helping protect against signs of scalp aging³. The active complex is led by Chlorella Emersonii Extract (a microalgae that energizes the scalp's cellular environment), Avena Sativa Oat Peptide (for strength and resilience), Niacinamide (scalp barrier support and anti-aging), and Spirulina Maxima Extract (antioxidant regeneration support) — an approach grounded in scalp science rather than surface conditioning.
Apply 1–2 pipettes to the scalp and 1–2 pipettes through lengths and ends on dry or towel-dried hair before bed. Leave in overnight. Style as usual in the morning.
What It Is
An overnight leave-in serum for scalp and hair inspired by the body's natural repair rhythm. Clinically shown to be 3x more effective at reducing breakage² and deliver 3x more visibly fuller-looking hair overnight.² Chlorella Emersonii Extract, Oat Peptide, Niacinamide, and Spirulina strengthen, regenerate, and hydrate while you sleep. Apply before bed. Leave in. Do not rinse. Vegan.
Hair Concerns
- Hair Loss & Thinning
- Breakage
- Scalp Health
- Dryness
Key Benefits
- 3x more effective at reducing breakage and 3x more visibly fuller-looking hair overnight² — the formula capitalises on the scalp's peak regeneration window during sleep, when follicle activity is highest and actives penetrate most effectively.
- Niacinamide supports the scalp barrier and protects against scalp aging³; Chlorella Emersonii energizes the follicle environment; Spirulina delivers antioxidants that support overnight regeneration and guard against oxidative scalp stress.
- Avena Sativa Oat Peptide builds tensile strength in fragile strands; EGCG (green tea) neutralizes free radicals at the follicle; Vitamin C supports collagen synthesis in the scalp dermis for a healthier follicle anchoring environment.
Highlighted Ingredients
What Else You Need to Know
Apply nightly in the evening for best results — the formula is designed to work through the full overnight regeneration window. For oily scalps or very fine hair, alternate nights may be more appropriate. Use 1–2 pipettes on the scalp section by section and 1–2 pipettes through lengths and ends, adjusting quantity based on hair density and length. Massage gently into the scalp until fully absorbed. Do not rinse. Contains Alcohol Denat. as the second ingredient — not suitable for extremely sensitized scalps. Contains Menthol — provides a cooling scalp sensation confirming contact. Pairs with EN
Fragrance
Eucalyptus, peppermint, and lemon with spiced wood, cedar, and juniper. Invigorating, fresh, and clean.
How to Use
Apply in the evening to dry or towel-dried hair. Use 1–2 pipettes on the scalp, distributing section by section. Use a further 1–2 pipettes through lengths and ends. Massage gently until fully absorbed. Do not rinse. Leave in overnight and style as usual the next morning. Apply nightly; on alternate nights if scalp is oily or hair is very fine.
FAQ
Why is this serum applied overnight rather than during the day?
The formula is inspired by chronobiology — the science of the body's natural rhythms. During sleep, the scalp shifts into its peak regeneration cycle, with increased cell turnover and follicle activity. Applying the serum before bed delivers actives at the moment the scalp and hair are most biologically receptive, which is why the overnight format produces the clinically measured 3x breakage reduction and fullness results.
How many applications does one 100ml bottle provide?
Using 1–2 pipettes on the scalp and 1–2 pipettes through lengths and ends nightly, a 100ml bottle provides approximately 25–50 nightly applications depending on hair density and length — roughly 1–2 months of consistent use.
Can I use the ENERGIZING Overnight Serum alongside the ENERGIZING Shampoo and Superactive?
Yes — the three products are designed to work as a complete ENERGIZING system. The Shampoo cleanses and stimulates at every wash; the Overnight Serum treats the scalp and hair during sleep; the Superactive is a separate leave-in serum applied to the scalp after washing. They target different moments in the daily routine and complement rather than duplicate each other.
Authorized Davines retailer · Zennkai Canada since 1984 · Made in Italy · B Corp since 2016 · Carbon Neutral since 2018