Gel polish top coat
Xtrem Flash™ Gel Top Coat

Regular price: $39
Regular price: ~~$45~~
Sale price: $39

Plumped effect

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The Xtrem Flash™ Gel Top Coat offers up to 21 days of flawless wear, all with express removal, no filing, no acetone, in just 10 minutes.

Its gel texture acts like a protective shield for a plump, glossy, and radiant gel effect, ensuring a high-performance manicure with impeccable shine and durability.

⚠️ Exclusively compatible with Green Flash™. Not suitable for Green™, Active™, or other brands.

How about this: Manucurist nail polishes have been TPO-free since 2019

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Xtrem Flash™ Top Coat ~~$45~~ $39 Bestseller ✨Xtrem Flash™ Top Coat + Vitaminized Base Coat ~~$69~~ $59 Best Value ✨Xtrem Flash™ Top Coat + Vitaminized Base Coat + Remover ~~$99~~ $75

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4.6/5 – Trusted by 117,000+ customers globally

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Description

Clinically proven results

Immediately*:

100% observed intense mirror-like shine
85% noticed a plumping gel effect

After 21 days**:

85% noticed extreme resistance
85% found removal simple and gentle
88% said their nails remained strong after removal

* Clinical test under dermatological supervision on 26 people, immediately after application.
** Clinical test under dermatological supervision on 26 people, after 21 days.

Benefits

Gentle, fast peel-off removal without acetone or nail damage (drilling)
Fully compatible with the Green Flash™ range
Instantly dry and resistant under LED lamp
No-wipe: no need to wipe the top coat after curing!
Precision brush for effortless application

A high-standard formula

Manucurist has always excluded Toluene*, Dibutyl Phthalate*, Formaldehyde*, HEMA**, Di-HEMA TMHDC**, and TPO***, long before EU cosmetic regulations came into force.

* Regulation (EC) 1223/2009, effective July 11, 2013.
** Regulation (EU) 2020/1682, effective December 3, 2020.
*** Regulation (EU) 2025/877, effective September 1, 2025.

Ingredients (INCI)

BIS-HEA POLY(1,4-BUTANEDIOL)-9/IPDI COPOLYMER, HYDROXYPROPYL METHACRYLATE, PENTAERYTHRITOL TETRAKIS(3-MERCAPTOPROPIONATE), BIS(PENTAERYTHRITYL TRIACRYLATE) PENTAERYTHRITYL DIACRYLATE/IPDI COPOLYMER, SUCROSE BENZOATE, ETHYL TRIMETHYLBENZOYL PHENYLPHOSPHINATE, TRIMETHYLOLPROPANE TRIMETHACRYLATE, PENTAERYTHRITYL TETRAACRYLATE, PENTAERYTHRITYL TRIACRYLATE, HYDROXYCYCLOHEXYL PHENYL KETONE, DIMETHICONE, BHT

How to use Top Coat Xtrem Flash™?

How to use the Xtrem Flash™ Top Coat?

After applying and curing 1 coat of Green Flash™ Vitaminized Base Coat and 2 thin layers of Green Flash™ color, apply a thin layer of Top Coat on 4 flat fingers (excluding the thumb - to prevent the gel texture from slipping into the cuticles and causing the manicure to lift prematurely).
Cure under LED Lamp (Top Coat program).
Repeat for the thumb separately, keeping it flat, then cure.
The Xtrem Flash™ Top Coat does not require a primer, nor wiping after curing !

How to remove the Xtrem Flash™ Top Coat?
No drilling nor acetone needed!

Cut small cotton pads and soak them completely with Green Flash™ Acetone-Free Remover and secure them for 10 minutes using Removal Clips.
The polish lifts off easily in peel-off form. Remove any residue gently with a wooden stick.

Pro tip ✨

Once you’ve mastered the technique, and if your nail length allows it: carefully cap the free edge of the nail before curing, without adding more polish, by gently gliding the brush along the tip. This step helps seal the different layers together, ensuring better waterproofing and longer wear for your manicure.

Sustainable Packaging

Glass Bottle: Emptied, cleaned and dried bottles can either be reused or placed in a recycling bin seperate from other materials to avoid contamination. If your local manicapality does not accept glass for recycling, bottles can be brought to a collection center. No need to remove labeling.

Plastic Cap (Plastic-type #5 - Polypropylene): Clean and remove cap from brush attachment and place in recycling bin or bring to a local collection center.

Nail Brush (Plastic-type #4 - Low Density Polyethylene): Clean and remove cap from brush and place in recycling bin or bring to a local collection center.

Label: No need to remove label as glass recycling processes will remove any labelilng

As always, verify your local manicipalitiy's recycling regulations and procedures and for more information please go to berecycled.org/search or search.earth911.com

The 1st Top Coat
Xtrem staying power, Xpress removal

A simple black line drawing of a hand with an upward-pointing arrow, indicating the removal or lifting of a rectangular object from the palm. The background is plain light gray.

Peel-off removal
without acetone
or drilling

A simple black and white line drawing of a calendar page with the number 21 displayed, suggesting a date or appointment.

Ultimate staying power
for up to 21 days

Three simple, black, four-pointed star shapes are arranged on a plain, light gray background, resembling sparkling or twinkling effects.

Extreme shine
with curved finish

Fast, gentle removal
in 10 minutes at home

Soak a cotton pad with Green Flash™ Gentle Nail Polish Remover
Leave on nails for 10 minutes using nail clips
The polish peels off instantly

What is Xtrem Flash™?

Xtrem Flash™ Top Coat is a long-lasting gel top coat that provides up to 21 days of shine and strength for your manicure. Its innovative formula combines high-performance gel effect with express removal - no filing, no acetone.

What’s the difference between Xtrem Flash™ Top Coat and Green Flash™ Top Coat?

Green Flash™ Top Coat is a gentle, naturally derived formula that delivers a glossy natural finish, up to 12 days of wear, and removes in just 1 minute with Green Flash™ acetone-free Remover.
Xtrem Flash™ Top Coat is a gel finish that lasts up to 21 days, with intense, plumped shine. It removes in 10 minutes with Green Flash™ Remover. Xtrem Flash™ is the perfect choice for anyone looking for a long-lasting, professional gel effect without filing or acetone during removal.

Is Xtrem Flash™ Top Coat compatible with the Green Flash™ range?

Yes! Xtrem Flash™ was specifically designed to work with the Green Flash™ system : base coat, colors, lamp, and remover. No need to replace everything to upgrade your manicure!

How do I apply Xtrem Flash™ Top Coat?

Apply your Green Flash™ manicure as usual (base, color + cure under a Manucurist LED lamp). Replace your Green Flash™ Top Coat with one even layer of Xtrem Flash™ Top Coat on 4 fingers (excluding thumbs), then cure under LED lamp on the Top Coat program. Repeat for the thumbs, keeping them flat. The result: ultra-glossy finish, instantly dry and resistant, lasting up to 21 days!

Is removing Xtrem Flash™ Top Coat difficult?

Not at all, that’s Manucurist’s signature! Forget the harsh filing that damages nails. Unlike traditional gel polishes, Xtrem Flash™ peels off after soaking a cotton pad with Green Flash™ acetone-free remover for 10 minutes under Removal Clips. Your nails remain strong, even after removal.

My nails are damaged-looking and prone to peeling. Is Xtrem Flash™ right for me?

Yes! Xtrem Flash™ was created for weak or damaged-looking nails that make polish chip too quickly. Occasionally or with every manicure, replace your Green Flash™ Top Coat with Xtrem Flash™ Top Coat to double the longevity of your manicure, up to 21 days of wear and shine. Removal stays easy!

My Xtrem Flash™ manicure lifted at the edges, why?

This can happen if the Top Coat was applied over cuticles or sidewalls. When the product touches the skin, it won’t adhere properly and may cause lifting. To avoid this, push back cuticles carefully before your manicure and always leave a small margin between polish, cuticles, and nail edges.

Our customers talk about us!

Our reviews are collected 28 days after any purchase and these are the reviews of verified buyers only

Overall rating: 4.66911 / 5 from 955 reviews.

AI Generated Review Summary

The Xtrem Flash™ Gel Top Coat provides a strong, thick, and glossy finish, lasting up to 21 days with professional-quality shine and durability. Customers appreciate its long-lasting properties and salon-like effect, though opinions on the look vary.

Summary topics

Nail Strength (23%): A significant amount of customers expressed satisfaction with how strong and thicker their nails are after using the product.
Product Shine (20%): Many customers remarked that the shine of the product is stunning, making it a popular choice.
Professional Effect (13%): It was reported by customers that the effect is just as good as at a professional manicurist.
Top Coat Durability (33%): A significant amount of customers expressed appreciation for the top coat's longer-lasting properties compared to the classic one.

Review topics: ["ingredients","color","protection","fit","quality","results","coverage","issue","smell","feel","improvement","works","texture","look","formula","difference","touch","expectations","use","application","finish","effect","line","top coat","nails","shine","hold","polish","manicure","removal"].

Review highlights

"Even after removal, my natural nails looked nourished and healthy, somehow even better that before." — Antoinette
"My nails are happy and I adore the fact there is no drilling or filing required for removal." — Faye
"I liked its texture and the quick drying time, its shine." — Alexandra A.

Reviews

J'aime toujours autant ces produits.

"J'aime toujours autant ces produits. Mes ongles ne sont jamais abîmés. Ma dernière pose a duré presque 3 semaines (et pourtant, je ne suis pas extrêmement douée 😅). J'ai testé le top coat Xtrem flash que je trouve avec un rendu très brillant. Attention à l’application par contre ! Rien ne doit déborder ! J'attends de voir si ce dernier dure encore plus longtemps 😊"

— Anne B. (5/5)

⭐⭐⭐⭐⭐ Franchement, je suis complètement

"⭐⭐⭐⭐⭐ Franchement, je suis complètement fan ! ❤️ Les couleurs sont canons, j’en ai plusieurs et je les adore vraiment. Mes vernis préférés… les Green Flash ! La tenue est vraiment top, surtout depuis le nouveau top coat, je trouve que ça tient encore mieux. J’adore pouvoir changer de couleur régulièrement, et avec toutes les teintes , il y a vraiment de quoi faire 😍 Bref, canon vos vernis !"

— Alexandra T. (5/5)

Presque parfait. Un peu épais

"Presque parfait. Un peu épais au rendu effet colle mais sinon top!"

— Victoire B. (4/5)

Je m'attendais à meilleure tenue. . .

"Je m'attendais à meilleure tenue. . . Le manuel avec les conseils d'application fourni est vraiment bien, ça aide les novices. Je constate une meilleure tenue qu'avec le top normal, mais pas non plus 21 jours. . . . . . Cela dépend aussi des couleurs de vernis. ."

— Sophie R. (4/5)

Très bonne tenue

"J’ai remplacé le top coat flash par celui-ci pour quasi toutes mes manucures. Je tiens plus de 2 semaines aisément sans accroc, photo à J+17."

— Tiffany (5/5)

Parfait

"La tenue est au top, évidemment il s'écaille un peu au fil des jours , mais de toute façon avec la repousse je refais mes ongles au bout de 11 jours. Parlons de la dépose, les 2 premières fois j'ai vraiment galéré, prête à jeter mon flacon. J'ai tenté une fois encore en suivant bien les consignes. J'ai étalé un minimum de produit. Pour la dépose j'ai limé juste un peu , j'ai appliqué le produit avec des papillotes, j'ai laissé le produit agir 15 minutes et là c'était parfait. Tout est parti comme sur la vidéo."

— Corine (5/5)

Top incroyable

"Ce top est incroyable comparé au classique. La tenue est plus longue et la finition donne beaucoup plus de brillance. J’adore et je vais en racheter ! Par contre la retrait est un peu plus long mais moins agressif que les autres semi permanent"

— Krefelle (5/5)

Un produit bluffant! La manucure

"Un produit bluffant! La manucure Green Flash tient beaucoup plus longtemps et le vernis reste plus brillant. Il faut patienter 10 minutes pour que le dissolvant agisse magiquement!"

— Elena D. (5/5)