Developed in Germany

More than 20 years of experience

Immediate results, right from the first application

Product details

Description

Active Solution No. 4 – versatile, effective, no frills

The Active Solution No. 4 is the all-round solution of the Callus Control Concept by Mr. Fuss. With its keratolytic action, it softens both calluses and cuticles – making it equally suitable for the soles, heels, balls of the feet and cuticle areas.

Unlike many other products, it contains no unnecessary additives that are there just for show. Only what works. Pure formula, clear results.

How to use: place cotton wool, apply solution, let it work – then gently remove. No rubbing, no filing.

Solution No. 4 – the key facts:

  • Keratolytic for calluses and cuticles
  • The all-round variant in the Callus Control Concept
  • No unnecessary additives – targeted, clear formula
  • 500 ml value size – for regular users

One solution. Two areas of use. Real results.

Ingredients, INCI

AQUA, POTASSIUM HYDROXID, PROPYLENE GLYCOL

Product safety information
Manufacturer
SENANA eCommerce GmbH & Co. KG
Luxemburger Str. 208
Köln, NRW, DE, 50937
gpsr-vp@senana.de
Responsible person
SENANA eCommerce GmbH & Co. KG
Luxemburger Str. 208
Köln, NRW, DE, 50937
gpsr-vp@senana.de
Warnings

[BG] Съдържа алкалии. Да се избягва контакт с очите. Да се пази от деца. Прочетете внимателно инструкциите за употреба [ES] Contiene un agente alcalino. Evítese el contacto con los ojos. Manténgase fuera del alcance de los niños. Léanse las instrucciones de uso. [CZ] Obsahuje žíravinu. Zabraňte styku s očima. Uchovávejte mimo dosah dětí. Čtěte pečlivě návod k použití. [DK] Indeholder alkali. Må ikke komme i berøring med øjnene. Opbevares utilgængeligt for børn. Læs brugsanvisningen omhyggeligt. [DE] Enthält Alkali. Kontakt mit den Augen vermeiden. Außer Reichweite von Kindern aufbewahren. Anwendungshinweise bitte sorgfältig lesen [EE] Sisaldab leelist. Vältida silma sattumist. Hoida lastele kättesaamatus kohas. Lugege hoolikalt kasutusjuhiseid [GR] Περιέχει αλκαλική ουσία. Να αποφεύγεται η επαφή με τα μάτια. Να φυλάσσεται μακριά από παιδιά. Διαβάστε προσεκτικά τις οδηγίες χρήσης [EN / IR] Contains alkali. Avoid contact with eyes. Keep out of reach of children. Read directions for use carefully [FR] Contient un agent alcalin Éviter tout contact avec les yeux Conserver hors de portée des enfants Lire attentivement le mode d'emploi [HR] Sadržava alkalije Izbjegavati dodir s očima Čuvati izvan dohvata djece Pažljivo pročitati upute za uporabu [IT] Contiene un agente alcalino Evitare il contatto con gli occhi. Tenere lontano dalla portata dei bambini Leggere accuratamente le istruzioni per l'uso. [LV] Satur sārmu. Nepieļaut nokļūšanu acīs! Sargāt no bērniem! Uzmanīgi izlasīt lietošanas pamācību. [LT] Sudėtyje yra šarmo Vengti patekimo į akis Saugoti nuo vaikų Atidžiai perskaityti naudojimo instrukcijas [HU] Lúgot tartalmaz. Szembe ne kerüljön! Gyermekektől elzárva tartandó. Gondosan olvassa el a használati útmutatót. [MT] Fih l-alkali Evita l-kuntatt mal-għajnejn Żommu 'l bogħod minn fejn jistgħu jilħquh it-tfal Aqra l-istruzzjonijiet tal-użu b'attenzjoni. [NL] Bevat een alkalische stof Contact met de ogen vermijden Buiten bereik van kinderen houden Gebruiksaanwijzing zorgvuldig lezen [PL] Zawiera alkalia Unikać kontaktu z oczami Chronić przed dziećmi Proszę uważnie przeczytać sposób użycia [PT] Contém um agente alcalino Evitar o contacto com os olhos Manter fora do alcance das crianças Ler as instruções de utilização com cuidado [RO] Conţine alcaline. A se evita contactul cu ochii. A nu se lăsa la îndemâna copiilor. A se citi cu atenţie instrucţiunile de utilizare. [SK] Obsahuje žieravinu Nesmie prísť do kontaktu s očami. Uchovávať mimo dosahu detí. Pozorne si prečítajte návod na použitie. [SL] Vsebuje alkalije. Izogibajte se stiku z očmi. Hranite zunaj dosega otrok. Pazljivo preberite navodila za uporabo. [FI] Sisältää emästä Varottava aineen joutumista silmiin Säilytettävä lasten ulottumattomissa Käyttöohjeet luettava huolellisesti [SE] Innehåller alkali Undvik kontakt med ögonen Förvaras oåtkomligt för barn Läs bruksanvisningen noggrant

The all-round solution from the Callus Control Concept.


In the Callus Control Concept, cuticles and calluses are no longer cut, rasped, or planed. You soften them in just a few minutes and then gently remove them. Learn more here:

THE RELIABLE ONE FROM MR. FUSS!

One for all cases. Ideal for getting started.
  • Premium quality, made in Germany
  • Ideal for getting started with system care
  • Available in 2 sizes, 500ml and 250ml

SO EASY! FOR YOU.

STEP BY STEP. HOW YOU DO IT AT HOME.

1

Apply the solution and press the damp cotton briefly.

2

After the exposure time (about 10 minutes), remove the cotton and push away the softened callus with the special pusher.

3

Rinse briefly with water and moisturize the skin with the care balm.

4

Same with the cuticles: apply, let sit, push away, moisturize. No. 1 handles the toughest spots.

1

Apply the solution and press the damp cotton briefly.

2

After the exposure time (about 10 minutes), remove the cotton and push away the softened callus with the special pusher.

3

Rinse briefly with water and moisturize the skin with the care balm.

4

Same with the cuticles: apply, let sit, push away, moisturize. No. 1 handles the toughest spots.

2000+ enthusiastic customers

Excellent 4.7

WHAT CUSTOMERS SHOW:

⭐ A product with top marks!
It's worth trying at least once, and you'll definitely fall in love with this product! 💥🙂

Verified

Marina S.

Incredibly good!

By chance I came across the active solution from Mr Fuss. And I have to say that I am incredibly satisfied. So easy, so hassle-free, fast and relaxed - I've never gotten rid of my calluses like this before. I think pictures say more than a thousand words. Clear purchase recommendation and my number 1 when it comes to calluses.

Verified

Jenny P.

Great product!

It's really very effective and I can recommend it to anyone. If you have heavy calluses, you might need to use a foot file additionally (but not a metallic one). Still, it delivers great results!

Verified

Cristina B.

Keratolytic for the feet

I think the product is really good! It works quickly and has made my feet noticeably softer. Especially for dry heels, you can already see a noticeable improvement after the first application.

Verified

Sandy

Awesome
Arrived an hour ago and tested it immediately… Honestly, I wouldn't have expected such a result after just 10 minutes. It even exceeded my expectations, I can really recommend it. Sorry for the somewhat gross photos, but maybe it helps others.

Verified

Lina

Good product

Works quickly and removes a large part of dead skin.

Verified

Mbuyamba

Awesome! I'm convinced…
I often wear open shoes in summer and have regularly treated my feet with an electric callus remover, but my heels got worse recently. Then I discovered this remedy and ordered it immediately. Already after the first application I can see a clear difference. Of course not everything goes away immediately, but the result is really fantastic. After a few more applications it will be perfect!

Verified

Catworld

Worth every single cent
Absolutely incredible. I really never thought it would work. It works and functions perfectly. Finally soft and tender feet again.
Besides removing calluses, it also removes dry skin so creams can work their magic again. Absolute purchase recommendation.

Verified

Cruise

Very good

Verified

Tarja

Stop grinding, cutting, or rubbing!

ONE SOLUTION IS THE SOLUTION.

The solution from Mr. Fuss is at the heart of the system care program, the Callus Control Concept. Through the keratolytic (callus-dissolving) effect of both Solutions No. 1 and No. 4, cuticles and calluses can be softened in minutes. So, soft as jelly, they can be gently and gently removed, without cutting, grinding, or rubbing.

NO MORE CUTTING!

No injuries, no rough skin areas.

PURE EFFECTIVENESS!

No dyes, no fragrances, no unnecessary marketing ingredients.

NO MORE SCRUBBING!

Rough heels? No more. Grinding tools are no longer needed.

LASTING EFFECTIVENESS

No sanding, no yo-yo effect.

  • 5 stars: 166 (87%)
  • 4 stars: 22 (12%)
  • 3 stars: 2 (1%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
Some of the reviews shown are from related products the merchant grouped with this one.
N
Nadia Spruzzino
My foot dubididu

I spent years searching something for my callus. Years of credo where i ruined my foot... In One application i see the difference. Never without. I save the foot of my boyfriend father. Prodotto stupendo. Ciao da italy. I pray i win the 50 euros of product bevause i made a wonderful video. Thankyou

M
Maria (Fossalta di Piave, IT)
Essenziale

L’unico rimedio a pelle secca e calli. Dovrebbero farlo in dimensioni più grandi.. 😂😍

C
Cornelia Ciocanescu (Catania, IT)

È un grande aiuto questo prodotto nel mio lavoro con i miei clienti! Grazie

E
ELENA LUISA (Turin, IT)

Prodotti top felici di aver scoperto questo metodo

G
Grazia Buscemi
Fantastico!!

Lo uso sulle clienti da un anno, il risultato è fantastico.

C
Cristina Blaj (Arad, RO)
Amazing product!

It is really efficient and i recommend it to everyone. If you have heavy callus you might need to also use a heel-file (not a metalic one) but great results!

L
LinaLina
Nickel

Reçu il y a 1h. Aussitôt testé.... Franchement je ne m'y attendais pas un résultat au bout de 10 min. Au-delà de mes espérances je recommande vivement.Désolée pour les photos dégoûtantes mais au moins cela pourrait aider .

C
Cliente AmazonCliente Amazon
Ottimo prodotto

Liquido leva cali, solo in 10 minuti per agire, sciogli cali - talloni perfetti. Consiglio

M
MbuyambaMbuyamba
Bon produit

Agit vite et retire une bonne partie des peaux mortes. Attention mettre des gants

R
Regine RoschkerRegine Roschker
Einfach nur WOW!!!👍

Das Produkt wurde bereits am darauffolgenden Tag geliefert....natürlich musste ich es sofort ausprobieren! Gesagt, getan, exakt 10 Minuten nach der vorgeschriebenen Einwirkzeit ( ich nahm Wattepads zum Auftragen der Tinktur) konnte ich die Hornhaut mit einem Messerrücken ganz einfach abschaben, sie hat sich in Gel verwandelt!....ich bin begeistert, kannte sowas nur aus Youtube Videos von Beauty-Salons...Bin froh, dass ich dieses Produkt gefunden habe und werde auf jeden Fall dabei bleiben!!!! Ich hatte seit Jahrzehnten keine hornhautfreien Füße!!👌Eindeutige Kaufempfehlung!

A
Afua AkuffoAfua Akuffo
Exciting Discovery 🤩🤩🤩

After the first application am super excited and satisfied with the results, it definitely delivers on what it promises to do!!!

A
Arzoo Costa SantosArzoo Costa Santos
Schöne glatte Füße herrlich…😉👍🏾

Super Produkt!!!Kann ich nur empfehlen. 👍🏾

Z
Zeneide MaranhãoZeneide Maranhão
Muito bom

Prodotto molto buono

G
Günther Günther
Funktioniert einwandfrei

Watte auf den Fuß, die Lösung drauf, wer möchte noch Folie zur Fixierung und dann 10 Minuten warten.Und wie man sieht, funktioniert es tatsächlich einwandfrei.Es tut weder weh, noch ist es gefährlich, da es lediglich Keratin auflöst.Man kann danach die Hornhut einfach abtragen. Zumindest die oberste Schicht.Super Zeug

P
PEDRO JOSE VALENTE VITAGLIANO (Barcelona, ES)

EXCELENTE

M
Mariya Georgieva
Перфектен!

Комплекта е супер,точно каквото исках. Успех, продължавайте все така да сте добри професионалисти!

H
HPS (Kierspe, DE)
soweit so gut

Ich konnte es noch nicht ausführlich testen aber die ersten Ergebnisse waren soweit okay.

F
FANGET Fabien (Paris, FR)
Solution pieds

Ce produit est génial, il fait fondre la corne des pieds. Après ils sont tout doux. Je recommande. Top 👍

V
Vitto (Zurich, CH)
Pieds tout doux

Les produits sont simples d’utilisation. Et après 10 minutes de pause on retrouve des pieds de bébé. La crème est très agréable aussi.

A
Anonym (Bistriţa, RO)
Recomand

Calitate preț este excelent.

E
Epure Oana Maria
Sehr Gut

Ist wow

M
Martine (Bayonne, FR)
Produits efficaces

Les produits sont efficaces et facile à manier . Je recommande

M
MB (Marseille, FR)
mon avis

expérience très positive

FAQs

Frequently asked questions about the Callus Control Concept and our answers to them:

How often should I apply it?

The best results are achieved when calluses are removed layer by layer using this
gentle method. We recommend for heavy calluses at the start
an application every 1-2 weeks. This way this layer is
reduced layer by layer. After some time, just one application every 1-2
months or even less frequently will suffice.

Should I let the solution work longer for heavy calluses?

Too long exposure times lead to drying of the treated
skin areas. The callus dries out again, and cannot be
removed. Better: To achieve efficient removal with
heavy calluses, you can briefly re-wet the cotton with the solution shortly before
removal to have a stronger effect.

If necessary, it may be necessary to repeat the application at intervals of a few days.

Is the application also suitable for diabetics?

Given that diabetics and risk patients
(for example, people taking blood thinners)
must not injure themselves, the Anti-Callus Anti-Growth System
is certainly an interesting alternative due to the gentle removal and
treatment method, and thus offers a significant advantage for
this group of people in the removal of
cuticles and the treatment of calluses. To be safe, please
speak with your doctor first

I have a corn, does it go away with the solution?

There are several good reasons why you should leave the
removal to someone who does it professionally. The corn consists
entirely of callus. Inside there is usually a core of
compressed callus that needs to be removed. We advise you: Please go
to a specialist or a foot care professional with a corn

Should I soak my feet first?

No. This is one of the most common mistakes. Please apply the Mr.
Fuss solution directly to dry skin. When the skin is damp
(which is the case after bathing) the solution cannot work well
. The result could be disappointing.

Here's how to do it right: Treat
the cuticles and calluses on your hands and feet with Mr. Fuss.
Afterwards, for example, a relaxing foot bath can replace the rinsing process
. Your feet will thank you.

Didn't find the answer?

Find more questions in our complete FAQ. Or just write to us here:

Your legal guarantee rights
EU legal guarantee of conformity notice
Under EU law, goods sold to consumers come with a minimum two-year legal guarantee of conformity. If goods are faulty or not as described, you are entitled to a free repair or replacement from the seller; where that is not possible you may be entitled to a price reduction or a refund.