Lemonvita logo
  • Home
  • Products
  • Contact Us
  1. Home
  2. /
  3. FAQ

Subscribe to our newsletter

The latest news, articles, and resources, sent to your inbox weekly.

Get updates, no spam emails.

HomeProductsScienceFAQContact UsPrivacyTermsReturns

© 2026 Lemonvita Limited. All rights reserved.

Instagram

Frequently Asked Questions

Straight answers backed by the same evidence behind the formula.

Product & Formula

What's inside — and why it works.

Hair loss is rarely one thing. DHT shrinks your follicles. Stress pushes them into early rest. Nutritional gaps starve them. Most supplements address one of these and hope for the best.

HairBooster is built around 10 biological pathways, with five clinically studied botanicals each targeting a different root cause:

  • Annurca apple — activates growth signaling and keratin production
  • Ashwagandha — reduces cortisol to calm stress-driven shedding
  • Saw palmetto + pumpkin seed — two DHT-blocking mechanisms for pattern thinning
  • Mixed tocotrienols — fat-soluble antioxidants that shield follicles from oxidative damage
  • Full micronutrient panel — biotin, zinc, vitamin D3, and 8 more cofactors in balanced ratios

HairBooster targets the three most common non-medical causes of hair loss: androgenetic alopecia (pattern thinning driven by DHT), telogen effluvium (stress- or nutrition-triggered shedding), and nutritional deficiency-related hair loss.

It is designed for adults aged 18–40 and is gender-neutral. It is not designed for alopecia areata (autoimmune), scarring alopecia, or hair loss from medication or chemotherapy.

Not sure what's driving your hair loss? A dermatologist can help pinpoint the cause — and HairBooster pairs well with a targeted approach.

You have probably never heard of it. That is the point.

Annurca is a heritage apple from southern Italy, unusually rich in procyanidin B2 — a polyphenol that activates hair growth signaling and redirects cellular metabolism toward keratin production. In a clinical trial of 250 participants, an Annurca-derived extract produced measurable increases in hair count, hair weight, and keratin content within 8 weeks.

The clinical trial — 250 participants, the largest RCT for any single botanical hair ingredient we reviewed — comes from the University of Naples. The mechanism is well-characterised, and we're watching for further studies to build on these results.

Two reasons: compliance and absorption.

The biggest predictor of supplement effectiveness is whether you actually take it consistently. Gummies have significantly higher daily adherence than capsules or tablets — especially over the 3–6 month timeline hair supplements require.

The gummy format does mean some ingredients (notably iron and L-cysteine) cannot be included due to taste and stability constraints — a trade-off we made deliberately for consistency. What the format does deliver: the five core botanicals, a full micronutrient panel, and a format you will not skip.

Yes. The formula is gender-neutral. DHT-driven thinning, stress-related shedding, and nutritional gaps affect everyone — the clinical trials behind the key ingredients included both male and female participants.

If you have a hormone-sensitive condition (e.g., PCOS or a thyroid disorder), check with your healthcare provider first.

Science & Evidence

The research behind every ingredient.

The evidence behind HairBooster is ingredient-level: each active botanical is supported by its own published clinical research, and the formula combines them across multiple biological pathways.

This is how the supplement industry works — whole-formula RCTs are rare for multi-ingredient products. What sets HairBooster apart is that every ingredient is graded against published evidence (A- through C-), so you can see exactly where the science stands.

A pilot observational study of the combined formula is on our research roadmap.

Hair loss is rarely one thing. The most common drivers are:

  • DHT (dihydrotestosterone) — a hormone that gradually shrinks follicles, causing pattern thinning. The most common form in both men and women.
  • Stress and cortisol — chronic stress pushes follicles out of the growth phase prematurely, causing diffuse shedding.
  • Nutritional deficiency — low iron, vitamin D, zinc, or B12 compromises the follicle's ability to grow and cycle normally.
  • Oxidative damage — free radicals damage follicular cells and accelerate aging of the growth cycle.
  • Thyroid imbalance — both hypothyroidism and hyperthyroidism can cause diffuse hair loss.

Biotin is a cofactor for keratin synthesis, and it helps — if you are deficient. The problem is that most adults get enough biotin from food. A 2017 review found no evidence that biotin supplementation improves hair in people without a documented deficiency.

Meanwhile, hair loss is driven by DHT, cortisol, oxidative stress, and micronutrient gaps — none of which biotin addresses. Taking biotin alone for hair loss is like putting premium fuel in a car with a flat tyre.

HairBooster includes biotin (1,000 mcg per serving) because mild deficiency is possible. But the formula's real value comes from the five clinically studied botanicals that address the pathways biotin cannot: DHT (saw palmetto, pumpkin seed), stress (ashwagandha), growth activation (Annurca), and oxidative defense (tocotrienols).

Iron is intentionally excluded, for two reasons.

First, gummy format constraint. Iron has a strong metallic taste that is extremely difficult to mask in gummy form. It also causes oxidative degradation of other ingredients during shelf life. You will not find clinically meaningful iron doses in any gummy supplement — this is an industry-wide limitation.

Second, safety. Unlike most vitamins, iron has a narrow therapeutic window. Excess iron causes GI distress and, in chronic excess, organ damage. Blanket supplementation without testing is not responsible formulation.

If you are experiencing ongoing shedding, ask your healthcare provider to check your ferritin. Iron deficiency is the single most common nutritional cause of telogen effluvium. If deficient, targeted iron alongside HairBooster covers both the nutritional gap and the broader pathways.

HairBooster does include vitamin C (30 mg per serving), which increases non-heme iron absorption 2–3x from your diet.

Results & Usage

Timing, dosing, and what to expect. Read the full Usage Guide

Hair biology moves slowly. Based on the clinical trial timelines of the individual ingredients:

Days 1–60: Internal changes you cannot see yet. Cortisol levels begin to normalise. Keratin production may increase. You may notice reduced shedding.

Days 60–120: DHT modulation and antioxidant defense are building. Some users notice less hair fall and early signs of new growth.

Days 120–180: This is where saw palmetto, tocotrienol, and pumpkin seed studies show their strongest data. Visible improvement in density and thickness becomes more likely.

Days 180+: Continued improvement. Hair shaft strength and diameter may increase. The tocotrienol study showed +34.5% hair count at 8 months.

These timelines reflect the clinical studies behind each ingredient. Your personal pace depends on the type of hair loss, your starting point, and consistency — which is why we designed HairBooster for daily use that's easy to maintain.

Start with 2 gummies per day. At this dose, four of the five key botanicals already reach their clinical ranges, and every micronutrient meets or exceeds its recommended daily intake. This is the right level for early thinning, mild shedding, or ongoing maintenance.

Experiencing active thinning or significant shedding? You can increase to 6 gummies per day for up to 24 weeks, then step back to 2 for maintenance. Do not exceed 6 per day.

Pick up where you left off — take your normal dose the next day. Do not double up. The pathways HairBooster supports are cumulative, not all-or-nothing. One missed day does not reset your progress.

That said, frequent missed days reduce the effective dose. If you forget regularly, try pairing it with an existing habit — morning coffee, brushing your teeth, or a meal.

HairBooster is designed for a specific kind of hair loss. Here's where it works best — and where it doesn't:

  • Reverse advanced baldness — if a follicle has been fully miniaturised for years, no supplement can bring it back. HairBooster is for early-to-moderate hair loss, where follicles are weakened but still cycling.
  • Replace prescription drugs — finasteride and minoxidil are more potent for androgenetic alopecia. HairBooster can complement them, not substitute them.
  • Work overnight — hair biology requires 3–6 months of consistent use before visible results. Anyone promising faster timelines is not being honest.
  • Treat autoimmune hair loss — alopecia areata and scarring alopecia require medical intervention.
  • Compensate for severe iron deficiency — iron is the most common nutritional cause of shedding, and it is not in this formula. Get your ferritin checked if shedding persists.
  • Guarantee universal results — hair loss has many drivers, and individual biology plays a role. What we can show you is exactly which pathways the formula targets, and the clinical evidence behind each one.

Safety & Transparency

What to know before you start. Read full Safety & Cautions

At the recommended 2-gummy serving, every ingredient is well within established safety limits for healthy adults. No ingredient exceeds its tolerable upper intake level.

At the intensive 6-gummy serving, all ingredients remain within established safety limits. If you take additional vitamin D supplements separately, check with your healthcare provider before using the intensive dose.

HairBooster is a dietary supplement, not a drug. It does not require a prescription.

Yes. HairBooster works as nutritional support alongside topical or prescription treatments. Saw palmetto operates through the same pathway as finasteride but at a gentler level, while the broader micronutrient and antioxidant coverage addresses factors that drugs do not target.

If you are on any medication, consult your physician before combining.

Consult a healthcare professional before use if any of the following apply:

  • Pregnant or breastfeeding
  • Thyroid condition or taking thyroid medication
  • Taking sedatives or anti-anxiety medication
  • Bleeding disorder or easy bruising
  • Surgery planned within 2 weeks
  • Taking blood thinners or anticoagulants
  • Biotin can affect certain blood tests (thyroid, cardiac markers, hormones). Pause HairBooster 48–72 hours before any scheduled blood work and let your doctor know you take biotin.

Cool, dry place. Away from direct sunlight. Keep the lid tightly closed.

Purchase through the official website or authorised retailers, and check that the seal and packaging are intact before use.

We let the evidence speak. The clinical studies behind the key ingredients showed measurable improvements in 60–80% of participants over 3–9 months — and we grade every ingredient's evidence level so you can see exactly where the science stands.

Hair loss is multifactorial — genetics, hormones, nutrition, stress, and time all play a role — so no responsible brand can promise universal results. What we guarantee is full transparency: you'll always know what's in the formula, why it's there, and what the research shows.