★★★★★
“Feels fresh after use. I feel the quality of my hair has improved.”Purchase marked verified by HK site. Translated excerpt.
Hair care / Vita Hair / Nano Serum
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Rendered product photography · label details are illustrative.
Vita Green · Leave-on scalp care · 100 mL
Vita Hair Nano Serum
A fresh-feeling step.
Just for your scalp.
A leave-on scalp serum with four botanical extracts and caffeine. Spray directly onto the scalp, massage and leave on — morning and evening, without another rinse.
★★★★★
Translated individual experience. Purchase marked verified by the HK site.
“Feels fresh after use.”
Pak Chan · Hong Kong · 19 Dec 2024Translated individual experience. Purchase marked verified by the HK site.
Scalp-first
leave-on care
leave-on care
30-day first-order
policy
policy
Made in
Hong Kong
Hong Kong
Botanicals
+ caffeine
+ caffeine
Wondering if it fits your routine? Try the 4-question guide →
Is Nano right for my routine?
Choose Nano if you want a separate, leave-on scalp-care step and like the fresh, cooling feel described by HK customers. It is fragranced and contains menthol. It is not a hair-loss treatment.
How do I use it?
Shake before use. Spray directly and evenly onto the scalp, gently massage with your fingertips for at least one minute until absorbed, and leave on. Repeat morning and evening. Follow the amount and precautions on your bottle.
Shipping & returns
The store’s general policy offers free US shipping, dispatch from Hong Kong and an estimated 5–7 working days. Timing is an estimate. Shipping policy · Satisfaction policy.
A look at the care routine
AI-generated care scenes · not an application demonstration.
Care starts at the scalp
Four botanicals.
Caffeine.
One leave-on scalp step.
100 mLIn every bottle
4Botanical extracts + caffeine
AM + PMMorning and evening use
1 min+Gently massage until absorbed
Follow your bottle’s directions for the amount and precautions.
Real words from the Hong Kong product page
How it feels.
In their own words.
Freshness, cooling and first impressions — translated from published customer feedback.
★★★★☆
“It doesn’t have a Chinese-herbal smell after use, and feels fresh.”Purchase marked verified by HK site. Translated excerpt.
★★★★★
“Feels cooling — better than I expected!”Purchase not marked verified. Translated excerpt.
Translated experience excerpts. F Liu’s full review also mentions adding the same-range shampoo. Read the original reviews.
Find your routine fit
Is Nano the step
you’re looking for?
Up to four questions about what you want and how you like to care for your scalp. Get practical guidance before choosing a bottle.
No email required. This guide does not diagnose a scalp or hair condition, determine its cause or predict product results.
Question 1 of 4
What would you like this product to do?
Choose the reason you’re considering Nano.
A step your shampoo doesn’t provide
Don’t stop your care
at rinse-off.
Make space for your scalp in the routine you already have.
- Apply where your routine begins.Spray directly onto the scalp.
- Keep the care step simple.Massage gently for at least one minute. Leave on.
- Make it part of morning and evening.No extra rinse-off step.
Vita Green · Hong Kong
Chinese herbal heritage.
A daily scalp-care formula.
Nano comes from the Vita Green family of products. Four botanical extracts — He Shou Wu, Eclipta, Ligustrum and ginseng — sit alongside caffeine in this leave-on serum.
A familiar care ritual, with its own place in your morning and evening.
Explore Vita Green’s story →
Inside the formula
Four botanicals.
Plus caffeine.
Meet the ingredients behind your daily scalp-care step.
What the research can tell you.
The research below is on ingredients or other formulations. It does not establish results from Vita Hair Nano Serum. Each ingredient includes its study type, source and limitations.
He Shou Wu
Polygonum multiflorum root extract. One of the four botanical extracts in the formula.
Research & limits
Human follicle laboratory studyA 2020 laboratory study used a root extract prepared with 50% aqueous ethanol. Researchers measured cell viability and follicle-cycle stages in cultured human cells and isolated follicles.
This was not a trial of people applying Nano. The study extract and concentration have not been matched to this serum.
Eclipta
Eclipta prostrata extract. Part of the four-botanical blend.
Research & limits
Animal studyA 2009 study investigated a methanol extract of the whole plant, published under the name Eclipta alba, in mice. Researchers examined skin changes, follicle counts and markers associated with follicle-cycle stages.
Mouse findings do not establish human results. Nano's extract preparation and concentration are not matched to that study.
Ligustrum
Ligustrum lucidum seed extract. See the full ingredient list for its botanical name.
Research & limits
Plant chemistry · extract gapA 2001 chemical study identified secoiridoid glucosides in Ligustrum lucidum fruits. This describes constituents of the plant, rather than testing this serum in people.
Fruit research is not automatically evidence for Nano's seed extract. Direct human hair evidence matching the exact seed extract remains unverified.
Ginseng
Panax ginseng root extract. Listed alongside the other botanicals and caffeine.
Research & limits
Human follicle laboratory studyA 2015 study examined red ginseng extract and selected ginsenosides in cultured human hair follicles and follicle cells. Researchers measured cell proliferation and signalling activity.
Human tissue in a laboratory is not a human treatment trial. Nano's root extract has not been shown to match the studied red ginseng preparation or ginsenoside levels.
Caffeine
Caffeine. Part of the leave-on formula alongside the four botanical extracts.
Research & limits
Human topical study · different formulaA 2017 study tested a different 0.2% caffeine-based liquid in 210 men over six months. Its primary endpoint was the proportion of hairs in their growth phase. The study was open-label, sponsor-funded and had no placebo arm.
It did not test Vita Hair Nano Serum. Nano's caffeine concentration, delivered dose and formulation match are unverified, so its results cannot be claimed for this bottle.
Full ingredient list & precautions
Water (Aqua), Butylene Glycol, Glycerin, Polysorbate 20, Fragrance (Parfum), Lecithin, Pentylene Glycol, Menthol, Sodium Glutamate, PEG-40 Hydrogenated Castor Oil, 1,2-Hexanediol, Propylene Glycol, Caffeine, Eclipta Prostrata Extract, Ligustrum Lucidum Seed Extract, Panax Ginseng Root Extract, Polygonum Multiflorum Root Extract, Mannitol, Arginine, Capryloyl Glycine, Phenoxyethanol, Ethylhexylglycerin, Chitosan, Cyanocobalamin.
Contains fragrance and menthol. External use only; avoid eyes and stop if irritation occurs. Follow the directions on your bottle.
Morning and evening
Spray. Massage. Leave on.
A short scalp-care step alongside your regular routine.
Shake & spray
Shake before use. Apply directly and evenly onto the scalp. Use the amount directed on your bottle.
Massage
Gently massage with your fingertips until absorbed, for at least one minute.
Leave on
No rinse needed. Repeat morning and evening, following your bottle’s directions.
External use only. Avoid the eyes. Contains fragrance and menthol; stop use if irritation occurs. Follow your current label’s precautions.
30DAYS TO DECIDE
Try it for 30 days.
Even after opening.
If your eligible first order isn’t right for you, the store’s satisfaction policy provides a refund within 30 days of delivery, without a return.
US and Canada · first order · one claim per customer · fair-use terms apply. A satisfaction policy, not a promise of results in 30 days.
Read the full satisfaction policy →A few things
you might be wondering.
Is this a hair-loss treatment?
Nano is a leave-on scalp-care cosmetic, not a treatment for hair loss. Customer comments describe individual experiences; results vary.
How soon will I notice a difference?
Freshness and cooling are sensations described in published HK reviews. No hair-growth result or timetable is promised. Use the 30-day satisfaction policy to decide whether the feel and routine suit you.
How long does one bottle last?
Each bottle contains 100 mL. How long it lasts depends on the directed amount and area of application. A fixed number of months per bottle is not claimed.
Can I use it with shampoo?
Nano is a separate leave-on scalp step. Continue to follow the directions on each product. Using multiple products does not establish which product produced a reported result.
Does it suit a sensitive scalp?
The formula contains fragrance and menthol. Suitability depends on the individual; it is not claimed to be hypoallergenic. Follow label precautions and stop if irritation occurs.
Where does my order ship from?
The store’s general policy states Hong Kong dispatch, free US shipping and estimated delivery of 5–7 working days. Read the shipping policy for terms.
Where are these reviews from?
They are translated excerpts from the Hong Kong Nano product page. The 4.5/5 rating covers all 22 reviews on that HK page as at 13 October 2026. Some mention other products, and not every purchase is marked verified. Selected excerpts retain mixed feedback; the originals are linked below.
Published Hong Kong feedback
The customer experience.
★★★★★ 4.5 / 5 · 22 HK-page reviews · snapshot 13 Oct
★★★★★
“Feels fresh after use. I feel the quality of my hair has improved.”Purchase marked verified by HK site. Translated excerpt.
Individual experience. Results vary.
★★★★☆
“It doesn’t have a Chinese-herbal smell after use, and feels fresh.”Purchase marked verified by HK site. Translated excerpt.
The full review also mentions adding the same-range shampoo.
★★★★★
“Feels cooling — better than I expected!”Purchase not marked verified. Translated excerpt.
Individual experience. Results vary.
★★★★★
“Feels cooling. I’ll keep using it!”Purchase not marked verified. Translated excerpt.
Individual experience. Results vary.
★★★★☆
“First time using it. I’m keeping at it and seeing how it goes.”Purchase marked verified by HK site. Translated excerpt.
Individual experience. Results vary.
★★★★☆
“Feels fresh, but I haven’t seen much effect on shedding.”Purchase marked verified by HK site. Translated excerpt.
Individual experience. Results vary.
★★★★☆
“I’ll keep using it and recommend it to friends.”Purchase not marked verified. Translated excerpt.
Individual experience. Results vary.
★★★★★
“I’ve used it for about two weeks. The experience feels pretty good. I’d recommend it to friends.”Purchase not marked verified. Translated excerpt.
Individual experience. Results vary.
★★★★★
“I’ve used it for a year.”Purchase marked verified by HK site. Translated excerpt.
Excerpt about length of use; no efficacy claim is inferred.
★★★★☆
“Near the end of the bottle, the nozzle stopped working. I had to remove the cap to pour out what was left. It was inconvenient; I hope this is followed up and improved.”Purchase marked verified by HK site. Translated excerpt.
Original reviewer rating: 4/5.
★★★★☆
“Very quick and convenient. From purchase to delivery, it took just three days.”Purchase marked verified by HK site. Translated excerpt.
Hong Kong delivery experience; not a US delivery promise.
Showing 11 selected excerpts
22 total HK-page reviews: 15 site-marked purchase verified, 7 not marked verified. Some discuss combined products; one body names shampoo. Selected excerpts preserve their meaning and the mixed experience. Read the originals →
Vita Hair Nano Serum · 100 mL
Your scalp-care step.
Start with one bottle.
100 mL · Four botanicals + caffeine · No subscription.
Vita Hair Nano Serum$77.00 USD