Toplash Eyelash Growth Serum Review:Ingredients, Amazon, Side Effects & Results
Bottom Line Up Front
Toplash Eyelash Growth Serum is one of the few lash serums with independently verified clinical results (+52.3% length at 8 weeks) and zero prostaglandin analogs. Its triple-peptide formula is safe under current EU and US regulations, making it a standout choice in 2026 as PGA-containing competitors face increasing scrutiny. Minor limitations: the price per mL is mid-range, and results require consistent 8–12 week use.
+52.3%
Lash length increase at 8 weeks
$16.63
Cost per mL (3 mL / $49.90)
Day 21
98% of users see first visible change
0
Prostaglandin analogs in formula
98%+
Natural origin ingredients
EU/US/CA
Regulatory compliance — all major markets
What Is Toplash Eyelash Serum?
Toplash Eyelash Enhancement Serum is a cosmetic lash growth product manufactured in the European Union and available globally through Toplash's own website and Amazon. The brand positions itself as a premium, science-backed alternative to prostaglandin-based lash serums — the category that includes GrandeLASH-MD, RevitaLash Advanced, and Latisse.
The product targets consumers who want clinically proven lash growth without the regulatory and safety concerns associated with FP-receptor agonist compounds. With over 300,000 customers worldwide and CPNP (Cosmetic Products Notification Portal) certification for the EU market, Toplash has established itself as a credible player in a crowded category.
Key brand claims include: independently verified clinical results (not brand-commissioned), a hypoallergenic formula suitable for contact lens wearers, and a vegan, cruelty-free production process. The 3 mL bottle applies to both upper lashes and brows.
Full Ingredient Breakdown
The following table lists Toplash's primary ingredients in approximate INCI order (most to least by concentration), with each ingredient's function and safety classification.
| INCI Name | Common Name | Function | Type |
|---|---|---|---|
| Aqua | Water | Solvent base | Base |
| Glycerin | Glycerol | Humectant, skin conditioning | Base |
| Propanediol | 1,3-Propanediol | Solvent, penetration enhancer (plant-derived) | Base |
| Panthenol | Pro-Vitamin B5 | Lash conditioning, moisture retention, reduces brittleness | Active |
| Cocodimonium Hydroxypropyl Hydrolyzed Wheat Protein | Wheat Protein Derivative | Film-forming, lash fibre strengthening, reduces breakage | Active |
| Biotinoyl Tripeptide-1 | BTP-1 (Biotin-GHK peptide) | Follicle anchoring, reduces lash fall, key growth active | Key Active |
| Butylene Glycol | Butylene Glycol | Humectant, solvent, texture modifier | Base |
| Centella Asiatica Extract | Gotu Kola | Collagen synthesis support, soothing, antioxidant | Botanical |
| Myristoyl Pentapeptide-17 | MP-17 (Keratin peptide) | Stimulates keratin gene expression, extends anagen phase | Key Active |
| Polygonum Cuspidatum Root Extract | Japanese Knotweed (Resveratrol source) | Antioxidant, anti-inflammatory, supports follicle health | Botanical |
| Scutellaria Baicalensis Root Extract | Baicalein (Skullcap root) | Antioxidant, soothes the lash line, anti-irritant | Botanical |
| Acetyl Tetrapeptide-3 | AT-3 | Counteracts follicle miniaturisation, supports dermal papilla | Key Active |
| Hydroxyethylcellulose | HEC | Thickener, film-forming, improves serum texture | Base |
| Phenoxyethanol | Phenoxyethanol | Preservative (within EU-regulated limits) | Base |
| Ethylhexylglycerin | Ethylhexyl Glycerin | Co-preservative, skin conditioning | Base |
The Three Key Actives: A Deeper Look
Myristoyl Pentapeptide-17 (MP-17) - The Keratin Stimulator
MP-17 is a synthetic five-amino-acid peptide sequence (Lys-Leu-Ala-Lys-Lys) conjugated to myristic acid, a fatty acid that improves skin penetration and bioavailability. The primary documented mechanism is upregulation of keratin gene expression in hair follicle keratinocytes — in practical terms, it signals follicle cells to produce more of the protein that forms the lash fibre itself.
Clinical research on MP-17 demonstrates measurable increases in lash length when applied consistently over 8–12 weeks. The myristic acid attachment is critical: without it, the peptide cannot penetrate the lipid-rich follicle environment effectively.
🔬 Mechanism: KGF receptor signalling → keratin gene upregulation
Biotinoyl Tripeptide-1 (BTP-1) - The Follicle Anchoring Peptide
BTP-1 is the collagen-fragment tripeptide GHK (Glycine-Histidine-Lysine) conjugated with biotin. The biotin component is a well-known co-factor for keratin synthesis and overall follicle health, while the GHK peptide segment has documented activity in stimulating collagen synthesis and reducing the rate of lash shedding by strengthening the follicle-dermis interface.
The practical result is twofold: lashes shed less prematurely (longer telogen latency) and the follicle environment is better supported for robust regrowth. This is the "anti-shedding" component of the Toplash formula.
🔬 Mechanism: Collagen-IV anchoring pathway → reduced premature lash loss
Acetyl Tetrapeptide-3 (AT-3) - The Anti-Miniaturisation Peptide
AT-3 is a four-amino-acid peptide that targets dermal papilla cells (DPC) — the specialised cells at the base of each follicle that direct follicle cycling and size. Age-related follicle miniaturisation occurs when DPC activity declines over time, resulting in progressively shorter, finer lashes with each cycle.
AT-3 counteracts this process by supporting DPC viability and signalling. It is particularly relevant for users whose lash thinning has an age-related or hormonally influenced component, such as post-menopausal lash changes. AT-3 is unique among the three actives in addressing the long-term trajectory of follicle health rather than just near-term growth stimulation.
🔬 Mechanism: DPC maintenance → reversed follicle miniaturisation
SCCS & Regulatory Safety Status (2026)
✅ Toplash Is Fully Compliant — No PGA Concerns
On February 2, 2026, the EU Scientific Committee on Consumer Safety published Opinion SCCS/1680/25, concluding that isopropyl cloprostenate (ICP), dihydroxy-dimethyl-ethyl hexanoate (DDDE), and monochloro-dihydroxy-dinor-eicosatetranyl-dihydroxy-cyclopentyl-heptanoic acid (MDN) "cannot be considered safe for use in cosmetics."
These three compounds are prostaglandin FP-receptor agonists used as active ingredients in GrandeLASH-MD, RevitaLash Advanced, NeuLash, LiLash, and other popular lash serums. Toplash contains none of these compounds and is therefore unaffected by this ruling.
Toplash's formula is also compliant with Health Canada's 2019 ban on ICP in cosmetics, and with current US FDA guidelines which do not approve OTC PGA use for cosmetic lash enhancement. The peptide actives (MP-17, BTP-1, AT-3) have no known regulatory safety concerns in any major market.
For users who previously used GrandeLASH, RevitaLash, or similar serums and are now seeking a PGA-free alternative, Toplash's ingredient profile makes it a direct replacement without the regulatory uncertainty that now surrounds the PGA category. See our full guide: Prostaglandin-Free Lash Serums.
Clinical Evidence: The Numbers Behind the Claims
+52.3%
Lash length increase
At 8 weeks vs. baseline
+31.9%
Lash volume / density increase
At 8 weeks vs. baseline
98%
Users with visible improvement
By Day 21 of daily use
8 wks
Time to full measured result
Consistent nightly application
Independent Clinical Trial Details
Study type: Controlled, third-party independent trial
Duration: 8 weeks continuous daily application
Application site: Upper lash line, once nightly
Primary endpoint: Lash length (measured, mm) vs. baseline
Secondary endpoint: Lash volume / density vs. baseline
Certification: CPNP (EU) · Cruelty-free certified · Hypoallergenic tested
Commissioning: Third-party (not internal brand study)
Why "Independent" Matters
Most competing lash serums — including GrandeLASH-MD, RevitaLash, and VEGAMOUR — cite brand-commissioned studies. In a brand study, the company controls the methodology, selects participants, and interprets results. An independent trial uses an external research body with no financial stake in the outcome, making positive results more credible. Toplash's +52.3% claim comes from the latter category.
For context: GrandeLASH-MD cites ~35% fullness improvement (brand study, 12 weeks); RevitaLash cites 20–30% improvement (physician-supervised brand study, 16 weeks). Toplash's results at the shorter 8-week mark from an independent trial represent a meaningful evidence advantage.
Pros & Cons
✓ Pros
- Independent (not brand-commissioned) clinical trial data
- Zero prostaglandin analogs — no SCCS/1680/25 concerns
- Safe for contact lens wearers and sensitive eyes
- No risk of iris colour change or periorbital fat atrophy
- 98%+ natural origin ingredients
- Vegan and cruelty-free certified
- CPNP certified (EU manufacturing standards)
- Works on lashes and brows from one bottle
- Available on Amazon for convenient reordering
- Maintenance schedule extends bottle to ~5 months
– Cons
- Requires 8–12 weeks for full results — patience needed
- Mid-range price ($16.63/mL) — not budget
- Cannot be used during pregnancy (general cosmetic precaution)
- Rare mild irritation reported in <2% of users (application technique sensitive)
- No brick-and-mortar retail presence (online only)
- Lash enhancement is not permanent — maintenance required
Side Effects & Safety Profile
Toplash's PGA-free formula eliminates the entire category of prostaglandin-specific adverse effects. Here is the complete side effect profile compared to typical PGA-containing lash serums:
| Side Effect | Toplash (Peptide) | PGA Serums (GrandeLASH, RevitaLash) |
|---|---|---|
| Iris colour change | Not possible | Documented — especially brown pigmentation in light eyes |
| Periorbital fat atrophy | Not possible | Documented — sunken/hollow appearance around eye |
| Skin hyperpigmentation | Not possible | Common — darkening of lash line skin |
| Uterotonic risk | Not possible | Contraindicated in pregnancy (FP receptor same as PGF2α) |
| Mild application-site irritation | Rare — <2% | Reported — especially with misapplication |
| Conjunctival redness | Very rare | Documented (contact with PGA and eye mucosa) |
| Eyelid oedema | Not reported | Occasional — especially bimatoprost-class PGAs |
The minority of users reporting mild irritation with Toplash typically experience it due to applying too close to the lash line waterline, applying over heavy undereye cream, or applying to damp skin. Correct application — a single thin stroke to the base of the upper lash line only, on completely dry, clean skin — eliminates irritation risk for the vast majority of users.
Amazon Listing Overview
Toplash Eyelash Growth Serum on Amazon
ASIN: B07B6MLY79
Size: 3 mL (0.10 fl.oz)
Price: $49.90 (subject to Prime promotions)
Rating: ★★★★☆ ~4.3/5 (Amazon.com + Amazon.co.uk)
Seller: Sold directly by Toplash Cosmetics
Markets: Amazon.com (US) · Amazon.co.uk (UK) · Amazon.de (DE)
Shipping: Prime eligible (US) · Standard international
Prime eligible: Yes (US Amazon Prime)
Buying tip: Purchase from the official Toplash store listing (verified seller) on Amazon rather than third-party resellers. This ensures you receive the current formula with a valid expiry date, and guarantees the product was stored and shipped correctly.
What Amazon Reviewers Say
Amazon reviews for Toplash are predominantly positive, with users frequently citing visibly thicker and longer lashes after 4–8 weeks of consistent use. A common theme in positive reviews is that users who had previously tried cheaper serums with no results saw measurable improvement with Toplash's peptide formula.
Critical reviews — accounting for roughly 10–15% of ratings — typically fall into two categories: users who experienced mild irritation (usually resolved by correcting application technique) and users who expected faster results than the biologically constrained 8–12 week timeline allows. A small number of reviews mention shipping issues or customer service response time, which are logistical rather than product concerns.
The overall sentiment aligns with the clinical data: Toplash works, but it works on the lash growth cycle's timeline — not on a week-by-week expectation.
Toplash vs. Popular Alternatives
How does Toplash compare to the three most popular competitor lash serums on the key parameters?
| Parameter | Toplash | GrandeLASH-MD | RevitaLash Adv. | Latisse (Rx) |
|---|---|---|---|---|
| Active ingredient | Peptides (MP-17, BTP-1, AT-3) | ICP (prostaglandin) | DDDE (prostaglandin) | Bimatoprost (Rx PGA) |
| SCCS/1680/25 status | ✓ Compliant | ✗ ICP flagged unsafe | ✗ DDDE flagged unsafe | Rx drug — different reg. |
| Iris colour change risk | None | Documented | Documented | High risk |
| Fat atrophy risk | None | Documented | Documented | High risk |
| Clinical evidence | Independent trial (+52.3% length) | Brand study (~35%) | Brand study (20–30%) | FDA RCT (25% length) |
| Price per mL | $16.63 | $32.50 | $32.50–$35 | ~$56 |
| Prescription needed | No — OTC | No — OTC | No — OTC | Yes — requires Rx |
| Pregnancy safe | Caution (cosmetic precaution) | Contraindicated | Contraindicated | Contraindicated |
| On Amazon | Yes (B07B6MLY79) | Yes | Yes | Rx only — no Amazon |
Who Should (and Shouldn't) Use Toplash
✓ Ideal For
- Anyone wanting clinically proven lash growth without PGA risks
- Contact lens wearers (PGA-free formula is safe)
- Users switching from GrandeLASH, RevitaLash, or LiLash due to SCCS/1680/25
- Those with age-related lash thinning (AT-3 addresses miniaturisation)
- Sensitive eyes or skin prone to reactions
- Users who want to maintain lash extensions without PGA risk
- Brow enhancement in addition to lashes
- EU residents needing SCCS-compliant products in 2026
→ May Not Be For You If...
- You want results faster than 8 weeks (no serum can bypass lash biology)
- Budget is the primary driver — see e.l.f. ($2.57/mL) or The Ordinary ($3.58/mL) for entry-level options
- You have a known allergy to any listed ingredient (perform patch test)
- You are pregnant — consult your GP before using any cosmetic lash serum
- You want maximum absolute lash length achievable at any cost — Latisse (bimatoprost, Rx) remains the strongest clinical option despite its side effect profile
Frequently Asked Questions
Does Toplash eyelash serum actually work?
Yes, based on independent clinical data. Toplash has published results from a third-party controlled trial showing +52.3% increase in lash length and +31.9% increase in lash volume at 8 weeks of daily use. 98% of participants showed visible improvement by Day 21. This is notably different from brand-commissioned studies that many competitors rely on. The peptide actives (MP-17, BTP-1, AT-3) have established mechanisms for supporting keratin production and extending the anagen growth phase.
What are the key ingredients in Toplash serum?
The three active ingredients are: Myristoyl Pentapeptide-17 (MP-17), which stimulates keratin gene expression; Biotinoyl Tripeptide-1 (BTP-1), a biotin-tripeptide conjugate that reduces lash fall and supports follicle anchoring; and Acetyl Tetrapeptide-3 (AT-3), which counteracts follicle miniaturisation by supporting dermal papilla cell activity. The base is 98%+ natural, including Glycerin, Panthenol, and botanical extracts from Centella Asiatica and Polygonum Cuspidatum.
Does Toplash serum contain prostaglandins?
No. Toplash contains zero prostaglandin analogs. It does not contain isopropyl cloprostenate (ICP), dihydroxy-dimethyl-ethyl hexanoate (DDDE), bimatoprost, latanoprost, or any other FP-receptor agonist. This is significant because the EU SCCS (SCCS/1680/25, February 2026) concluded that ICP, DDDE, and MDN "cannot be considered safe for use in cosmetics." Toplash is fully compliant with current EU, US, and Canadian regulatory standards.
What are the side effects of Toplash eyelash serum?
Toplash has a clean safety profile. Because it contains no prostaglandin analogs, it avoids PGA-associated risks: iris colour change, periorbital fat atrophy, skin hyperpigmentation, and uterotonic effects. Less than 2% of users report mild temporary irritation at the application site, usually caused by applying too close to the waterline or over heavy moisturiser. This resolves by correcting application technique. If persistent irritation occurs, discontinue use.
How long does one bottle of Toplash last?
The 3 mL bottle lasts approximately 10–12 weeks at nightly application. After the initial growth phase, reducing to 3 nights per week (maintenance schedule) extends the bottle to 18–22 weeks — roughly 5 months. On a maintenance schedule, the annual cost is approximately $120–$130, making it one of the more cost-effective independently proven lash serums available.
Is Toplash available on Amazon?
Yes. Toplash is available on Amazon.com (ASIN: B07B6MLY79) and Amazon.co.uk. The product is sold directly by Toplash Cosmetics. Purchase from the official Toplash Amazon store listing to ensure you receive an authentic product with a valid expiry date. Third-party resellers may carry older stock.
How does Toplash compare to GrandeLASH-MD and RevitaLash?
All three claim lash enhancement, but differ fundamentally in their actives. GrandeLASH-MD contains ICP and RevitaLash contains DDDE — both flagged as unsafe by SCCS/1680/25 (EU, February 2026). Toplash uses only peptides with no regulatory safety concerns. On efficacy, Toplash's +52.3% length from an independent trial compares favourably to GrandeLASH's ~35% (brand study) and RevitaLash's 20–30% (brand study). Toplash also costs $16.63/mL vs GrandeLASH's $32.50/mL — half the price for superior independent evidence.
References
- Scientific Committee on Consumer Safety (SCCS). Opinion on isopropyl cloprostenate (ICP), dihydroxy-dimethyl-ethyl hexanoate (DDDE) and monochloro-dihydroxy-dinor-eicosatetranyl-dihydroxy-cyclopentyl-heptanoic acid (MDN). SCCS/1680/25. February 2, 2026. European Commission. Source
- Toplash Cosmetics. Clinical study data: independent third-party controlled trial, 8-week lash length and volume measurement. Internal reference. toplash.com/products/lash-serum
- INCIDecoder. Toplash Eyelash and Eyebrow Growth Serum ingredients. incidecoder.com
- Fabi SG, et al. "Eyelash growth from application of bimatoprost in gel suspension to the base of the eyelashes." Ophthalmology. 2010;117(5):1024–1031. (Reference context for PGA mechanism)
- Varothai S, Bergfeld WF. "Androgenetic alopecia: an evidence-based treatment update." Am J Clin Dermatol. 2014;15(3):217–230. (Follicle biology context)
- Kaur IP, Kapila M, Agrawal R. "Role of novel delivery systems in developing topical antioxidants as therapeutics to combat photoageing." Ageing Res Rev. 2007;6(4):271–288. (Centella Asiatica and resveratrol in cosmetics)
- Health Canada. "Notice of Intent — Proposed restrictions on certain prostaglandin analogues in cosmetic products." 2019. Government of Canada. canada.ca
- Amazon.com product listing: TOPLASH Eyelash Growth Serum. ASIN B07B6MLY79. amazon.com
- Trueb RM. "Pharmacologic interventions in aging hair." Clin Interv Aging. 2006;1(2):121–129. (Age-related follicle miniaturisation and dermal papilla cell biology)
Recommended alternative — complete triple-peptide system
Toplash Lash & Brow Serum
The complete AT-3 + BTP-1 + MP-17 growth-peptide system with independent clinical data: +52.3% length and +31.9% volume at 8 weeks. Prostaglandin-free, paraben-free, fragrance-free and ophthalmic-tested.
Shop Toplash SerumPublished: Jun 20, 2026
