trozen hair support system review: the swiss-patented hair serum, honestly assessed for bangladesh
Last updated 14 June 2026 · 11 min read · by Swapnil Roy
the verdict. The Trozen Hair Support System (100ml, BDT 1,500) is the first hair product we have stocked that we can point to published clinical data for. It contains two Swiss-made patented actives — AnaGain and RootBioTec HO — that are normally found in international serums costing three to four times more. In manufacturer trials, AnaGain increased anagen (growing) hair density by about 8% and reduced telogen (shedding) hair by more than 28% over three months, while RootBioTec HO reduced hair loss by 26% after one month and 31% after two. Those numbers are real and published, but they come from company-funded studies, and we will not pretend otherwise. Expect meaningful reduction in shedding by month two and visible density change by month three to four. It is not a cure for advanced pattern baldness.
why hair fall gets worse in bangladesh — and why most products do nothing
Walk into any pharmacy in Dhaka and you will find thirty hair oils and tonics promising to stop hair fall. Almost all of them contain some combination of coconut oil, amla, bhringraj, and fragrance. Those ingredients condition the hair shaft — the dead part you can see. They do essentially nothing to the follicle underneath your scalp, which is where hair fall actually happens.
This distinction is the entire point of this review. Hair fall is a follicle problem, not a hair problem. Your hair grows in a cycle: an active growth phase (anagen), a transition phase (catagen), and a resting-then-shedding phase (telogen). Healthy scalps keep roughly 85 to 90% of follicles in anagen at any time. When that ratio shifts — because of hormones, stress, illness, or seasonal change — more follicles drop into telogen simultaneously and you start seeing hair on your pillow, in the shower drain, on your comb.
Bangladesh stacks several triggers at once. Monsoon humidity keeps the scalp damp and creates conditions for fungal overgrowth and dandruff, both of which inflame follicles. Hard water in much of Dhaka leaves mineral deposits. Air pollution settles on the scalp through the day. And the genetic and hormonal drivers common across South Asian populations — particularly the enzyme 5-alpha reductase converting testosterone into DHT, which shrinks follicles — are working in the background regardless of weather.
A product that only coats the hair shaft cannot touch any of that. A product that works at the follicle can.
the two ingredients that make this different
Both are patented actives from Mibelle Biochemistry, a Swiss ingredient laboratory that supplies premium international haircare brands. Neither appears in a typical BDT 300 hair tonic, because both are expensive raw materials.
1. anagain — the pea sprout extract that restarts growth
AnaGain is produced from a specific pea sprout (Pisum sativum) cultivated under controlled laboratory conditions. Its target is the dermal papilla cells — the cluster of cells at the base of each follicle that regulate whether that follicle grows or rests.
What the published data shows:
In a three-month study on volunteers with mild to moderate hair loss using a 2% formulation, anagen hair density increased by approximately 8% and telogen hair density fell by more than 28%. (source)
The hair growth coefficient — the proportion of actively growing follicles — rose from 4 to 7.2 over the same period.
In a mechanistic study on 10 volunteers, 2% pea sprout extract increased expression of FGF7 by 56% and noggin by 85%. Both are signalling molecules that push follicles into the growth phase.
The honest caveat: this research was funded by the company that developed the ingredient. That does not make it false — the mechanism is plausible and the methodology is published — but independent, larger-scale, placebo-controlled replication would strengthen the case considerably. We would rather tell you that than let you discover it later.
2. rootbiotec ho — the basil root extract that blocks dht
RootBioTec HO is made by culturing basil (Ocimum basilicum) hairy roots in bioreactors — a technique that lets the lab produce concentrations of the active metabolites far above what the plant makes naturally.
Its mechanism is the one that matters most for hereditary and hormonal hair loss. It inhibits 5-alpha reductase type II, the enzyme that converts testosterone into DHT. DHT is what miniaturises follicles over time in androgenetic hair loss — the follicle gets progressively smaller until it stops producing visible hair. Blocking the enzyme upstream slows that process. RootBioTec HO also increases proliferation of dermal papilla cells, which complements AnaGain's mechanism rather than duplicating it.
What the published data shows:
Volunteers collected hair lost through combing on three consecutive days as the measurement method.
Hair loss reduced by 26% after one month of use. (source)
Hair loss reduced by 31% after two months.
Same caveat applies: manufacturer-generated data. But 5-alpha reductase inhibition is a well-established mechanism — it is how finasteride works, at a pharmaceutical scale — so the biological rationale is not speculative.
Why the combination matters: AnaGain works on the growth cycle. RootBioTec HO works on the hormonal driver. Most single-active products address one or the other. Addressing both is what makes this formula worth its price, and it is why we stocked it.
Available at you&skin — BDT 1,500 for 100ml. View the product here. GMP and ISO certified manufacturing. Cash on delivery nationwide, free delivery on orders over BDT 5,000.
what it feels like to use
Texture: A light serum, not an oil. It does not leave hair greasy or require washing out, which is the practical reason people stick with serums over traditional oils.
Application: Applied directly to the scalp — not the hair length. This is the most common user error. The active ingredients need to reach the follicle, so part your hair in sections and apply along the scalp line.
Absorption: Sinks in within a couple of minutes. You can apply it in the morning and go to work without visible residue.
Scent: Mild. Nothing like the strong herbal smell of traditional hair tonics.
Size: 100ml. Used once daily at the standard dose, a bottle typically lasts around 6 to 8 weeks.
how to use it so it actually works
Apply to a clean, dry or towel-dried scalp. Not soaking wet — water dilutes the serum and it runs off before absorbing.
Part your hair into sections. Apply directly along the scalp in each section, focusing on thinning areas and the hairline. Applying to hair length wastes product entirely.
Massage for 60 seconds. Use fingertips, not nails. This helps absorption and increases blood flow to the follicles.
Do not rinse out. This is a leave-in serum. Rinsing removes the actives before they can work.
Once daily, consistently, for at least three months. The clinical data is based on three months of continuous use. Stopping at week six because "nothing is happening" is the single most common reason people conclude hair products do not work.
realistic timeline — what happens when
Hair grows roughly 1 cm per month. That biological reality caps how fast any product can show visible results, and anyone promising faster is not being straight with you.
Weeks 1–4: Nothing visible. You may notice slightly less hair in the shower drain toward the end of this period. Do not expect density change.
Weeks 4–8: This is where shedding reduction becomes noticeable. The RootBioTec data measured 26% reduction at one month, 31% at two. Count hairs on your pillow or in your comb if you want an objective measure.
Weeks 8–12: New growth begins appearing as short baby hairs along the hairline and parting. These are easy to miss unless you are looking for them.
Months 3–4: Visible density change. This is where the AnaGain three-month data lands, and where most users report actually seeing a difference in the mirror.
Beyond month 4: Continued improvement with sustained use. Hair loss is a chronic process — stopping treatment generally means gradual return to baseline over several months.
Track it properly. Photograph your parting and hairline every two weeks under the same light. Better still, on three consecutive days once a month, collect and count the hairs you lose while combing — that is literally the measurement method used in the RootBioTec study, and it will tell you the truth long before the mirror does.
who this is for — and who should see a doctor instead
This is likely to help if: you have noticed increased shedding over the last few months, your parting is widening gradually, you have seasonal or stress-related hair fall, or you have early-stage hereditary thinning and want to slow it down. It is also reasonable as a preventive if hair loss runs in your family and you are in your twenties or thirties.
This is unlikely to be enough if: you have advanced pattern baldness with fully bald areas — once a follicle has been dormant for years, topical actives cannot revive it. You have sudden, patchy, coin-shaped bald spots, which may be alopecia areata and needs medical diagnosis. Or your hair loss started abruptly after illness, surgery, childbirth, or significant weight loss, which suggests telogen effluvium and often has an underlying cause worth treating.
See a dermatologist if: hair loss is rapid, patchy, accompanied by scalp pain, itching, or visible scaling, or if you are a woman experiencing significant hair loss — female pattern loss can signal thyroid issues, iron deficiency, or PCOS, all of which are common in Bangladesh and all of which are treatable once identified. A consultation in Dhanmondi or Gulshan typically costs BDT 800 to 2,000 and a simple blood panel can save you months of guessing.
the price, honestly assessed
BDT 1,500 for 100ml, which lasts most people 6 to 8 weeks. That works out to roughly BDT 190 to 250 per week, or about BDT 30 a day.
For comparison: a single PRP (platelet-rich plasma) session at a Dhaka hair clinic typically runs BDT 8,000 to 15,000, and the standard protocol is three to six sessions. International serums built on the same Mibelle actives commonly retail between BDT 4,000 and 7,000 for a comparable bottle.
Against a BDT 300 pharmacy hair oil, this is five times the price. It is also a fundamentally different product doing a fundamentally different job. If your hair fall is mild and cosmetic, the oil may be all you want. If your parting is widening, the oil is not going to change that.
Budget honestly: a three-month course is roughly BDT 3,000 for two bottles. That is the minimum meaningful trial. Buying one bottle, using it for six weeks, and concluding it does not work is spending BDT 1,500 to learn nothing.
how to check yours is authentic
Hair products are among the most counterfeited categories in Bangladesh because demand is high and buyers rarely check.
Check for GMP and ISO certification marks. This product is made by a GMP and ISO certified facility and the packaging should reflect it.
Check the importer marking. Should read Brothers Technologies Inc. for legitimate BD imports.
Check the ingredient list for the named actives. It should list AnaGain (or Pisum Sativum Sprout Extract) and RootBioTec HO (or Ocimum Basilicum Hairy Root Culture Extract). If neither appears, you do not have this product.
Check the batch code and expiry. Crisp printing, not smudged, on the bottle base or carton.
Our guide to spotting counterfeit products in Bangladesh covers verification methods that apply across categories.
frequently asked questions
does trozen hair serum really stop hair fall?
The published manufacturer data shows RootBioTec HO reducing hair loss by 26% at one month and 31% at two months, and AnaGain reducing telogen (shedding-phase) hair by more than 28% over three months. Those are meaningful reductions, not elimination. Realistic expectation: noticeably less shedding, not zero shedding. Independent replication of these studies would strengthen the evidence.
how long does trozen hair serum take to work?
Reduced shedding is typically the first change, around weeks 4 to 8. Visible density improvement lands around month 3 to 4, because hair grows roughly 1 cm per month and new growth takes that long to become visible. Minimum meaningful trial is three months of daily use.
what is the price of trozen hair serum in bangladesh?
BDT 1,500 for 100ml at you&skin, with cash on delivery nationwide. A bottle lasts 6 to 8 weeks at standard use, so a three-month course is approximately BDT 3,000.
can women use trozen hair serum?
Yes. The actives work on hair follicle biology, which is not gender-specific. That said, if you are a woman with significant hair loss, get a blood panel first — iron deficiency, thyroid dysfunction, and PCOS are common causes in Bangladesh and all are treatable. A serum will not fix a nutritional or hormonal deficiency.
is it safe to use daily?
Yes, it is formulated for daily leave-in use and is manufactured under GMP and ISO certified conditions. As with any new topical product, patch test on a small area of scalp for a couple of days first, particularly if you have sensitive skin or existing scalp conditions.
can i use it with minoxidil?
Generally yes — they work through different mechanisms and are not known to conflict. But if you are on minoxidil, finasteride, or any prescribed hair treatment, check with the doctor who prescribed it before adding anything to your routine.
will hair fall come back if i stop using it?
Most likely, gradually. Hair loss driven by hormones or genetics is a chronic process, not a one-time event. These actives slow the process while you use them. Stopping generally means returning toward your baseline over several months. Treat it as ongoing maintenance rather than a course of treatment with an end date.
does it help with dandruff or scalp itching?
It is not formulated as an antifungal, so it will not treat dandruff or seborrheic dermatitis directly. If you have flaking and itching alongside hair fall, treat the scalp condition first — inflamed scalps shed more hair. An antifungal shampoo containing ketoconazole used twice weekly is the standard approach, and it pairs fine with this serum.
one more thing
Hair fall carries a weight that skin concerns often do not. People delay dealing with it, avoid photographs, and then start looking for solutions at the point where the easiest gains have already been lost. The uncomfortable truth about hair is that preventing loss is far easier than regrowing what is gone. Follicles that are still alive but weakening respond well. Follicles dormant for years mostly do not.
If you are noticing more hair in the drain than you used to, that is the moment to act — not two years from now when the parting has widened. Three months of consistent use will tell you clearly whether this works for your particular pattern of loss. That is a reasonable, affordable experiment with a real evidence base behind it.
One practical note if you are new to a proper routine. Hair fall rarely arrives on its own — the same Dhaka heat, humidity, and pollution that inflame your scalp are working on your face at the same time. If you have not built a skincare routine yet, our simple four-product guide for men in Bangladesh takes five minutes a day. If dark spots are also on your list, the brightening and pigmentation review covers that side.
The Trozen Hair Support System is available here at BDT 1,500 for 100ml. Cash on delivery nationwide, free delivery over BDT 5,000. If your hair loss is sudden, patchy, or accompanied by scalp symptoms, please see a dermatologist first — we would rather you get the right diagnosis than sell you a serum that was never going to address the actual cause.