{"id":43258,"date":"2026-11-03T10:28:37","date_gmt":"2026-11-03T09:28:37","guid":{"rendered":"https:\/\/swissdermaclinic.ch\/how-long-does-botulinum-toxin-last\/"},"modified":"2026-11-03T10:28:37","modified_gmt":"2026-11-03T09:28:37","slug":"how-long-does-botulinum-toxin-last","status":"publish","type":"post","link":"https:\/\/swissdermaclinic.ch\/en\/how-long-does-botulinum-toxin-last\/","title":{"rendered":"How long does botulinum toxin last for expression lines?"},"content":{"rendered":"

In short:<\/strong> For expres\u00adsi\u00adon lines, the effect of botu\u00adli\u00adnum toxin usual\u00adly lasts about three to four months, and lon\u00adger in some peo\u00adp\u00adle. First chan\u00adges often beco\u00adme visi\u00adble after three to seven days. After about two weeks, the respon\u00adse can alre\u00ada\u00addy be asses\u00adsed quite well, alt\u00adhough the result may still deve\u00adlop. How long the effect lasts depends on fac\u00adtors such as the trea\u00adted mus\u00adcles, the pro\u00adduct and the dose. Whe\u00adther and when ano\u00adther tre\u00adat\u00adment makes sen\u00adse is the\u00adr\u00ade\u00adfo\u00adre dis\u00adcus\u00adsed indi\u00advi\u00addu\u00adal\u00adly with your doctor.<\/p>\n

Before treatment: what can change?<\/h2>\n

When you smi\u00adle, frown or rai\u00adse your eye\u00adbrows, your facial mus\u00adcles are at work. This crea\u00adtes lines that are main\u00adly visi\u00adble during move\u00adment, known as dyna\u00admic wrink\u00adles or expres\u00adsi\u00adon lines. They include the frown line bet\u00adween the eye\u00adbrows<\/a>, hori\u00adzon\u00adtal fore\u00adhead lines and cro\u00adw\u2019s feet at the outer cor\u00adners of the eyes.<\/p>\n

Botu\u00adli\u00adnum toxin<\/a> tem\u00adpo\u00adr\u00ada\u00adri\u00adly wea\u00adk\u00adens the signal from the ner\u00adve to the trea\u00adted mus\u00adcle. The mus\u00adcle con\u00adtracts less stron\u00adgly, and the expres\u00adsi\u00adon lines abo\u00adve it can appear less pro\u00adno\u00adun\u00adced. The acti\u00adve sub\u00ads\u00adtance does not fill a wrink\u00adle and does not replace lost tissue.<\/p>\n

If a line stays visi\u00adble when your face is rela\u00adxed, it has a sta\u00adtic com\u00adpo\u00adnent. Such etched-in lines respond less cle\u00adar\u00adly than pure move\u00adment lines. A wrink\u00adle that is still visi\u00adble the\u00adr\u00ade\u00adfo\u00adre does not auto\u00adma\u00adti\u00adcal\u00adly mean that the tre\u00adat\u00adment is not working or has alre\u00ada\u00addy worn off.<\/p>\n

A rea\u00adli\u00adstic assess\u00adment includes loo\u00adking at the face both at rest and in moti\u00adon. You can read more about the indi\u00advi\u00addu\u00adal are\u00adas on our pages on trea\u00adting the frown line<\/a>, trea\u00adting fore\u00adhead lines<\/a> and cro\u00adw\u2019s feet<\/a>.<\/p>\n

The first days: the effect begins<\/h2>\n

Imme\u00addia\u00adte\u00adly after the injec\u00adtion, the later effect can\u00adnot yet be seen. First chan\u00adges often appear after three to seven days: for exam\u00adp\u00adle, the trea\u00adted area can no lon\u00adger be ten\u00adsed as stron\u00adgly when you frown. How cle\u00adar\u00adly you noti\u00adce this varies from per\u00adson to person.<\/p>\n

So do not judge the result straight after your appoint\u00adment, what counts is how it deve\u00adlo\u00adps. If you want to keep track of the chan\u00adge for yours\u00adelf, pho\u00adtos taken in simi\u00adlar light, with the same head posi\u00adti\u00adon and a com\u00adpa\u00adra\u00adble expres\u00adsi\u00adon can help. A pho\u00adto taken while smi\u00adling can only be com\u00adpared to a limi\u00adt\u00aded ext\u00adent with one of a rela\u00adxed face.<\/p>\n

Red\u00adness, swel\u00adling, ten\u00adder\u00adness or brui\u00adsing can occur at the injec\u00adtion sites. The\u00adse local reac\u00adtions are sepa\u00adra\u00adte from the actu\u00adal effect on the mus\u00adcle. Fol\u00adlow your doc\u00adtor\u2019s ins\u00adtruc\u00adtions and avo\u00adid rub\u00adbing or mas\u00adsa\u00adging the trea\u00adted areas.<\/p>\n

After about two weeks: assessing the result<\/h2>\n

After about two weeks, the effect has cle\u00adar\u00adly deve\u00adlo\u00adped in many cases. This is a useful point of refe\u00adrence for dis\u00adcus\u00adsing the chan\u00adge. It does not mean, howe\u00adver, that every pro\u00adduct rea\u00adches its maxi\u00admum effect in every per\u00adson at exact\u00adly that time. The visi\u00adble smoot\u00adhing can still deve\u00adlop further.<\/p>\n

Seve\u00adral ques\u00adti\u00adons mat\u00adter in the assess\u00adment: Has the mus\u00adcle move\u00adment chan\u00adged? How does the area look at rest? Does the chan\u00adge match the goal you dis\u00adcus\u00adsed before\u00adhand? If a line remains, it is important to distin\u00adgu\u00adish whe\u00adther the\u00adre is still mus\u00adcle acti\u00advi\u00adty or whe\u00adther the wrink\u00adle is alre\u00ada\u00addy etched into the skin.<\/p>\n

\n

A check-up does not auto\u00adma\u00adti\u00adcal\u00adly mean a top-up<\/strong><\/p>\n

A medi\u00adcal assess\u00adment once the effect has set in is not the same as ano\u00adther injec\u00adtion. Whe\u00adther a fur\u00adther tre\u00adat\u00adment is an opti\u00adon at all and what inter\u00adval is nee\u00added depends on the fin\u00addings and on the pro\u00adduct used.<\/p>\n<\/blockquote>\n

If you noti\u00adce hard\u00adly any chan\u00adge or the result looks uneven, cont\u00adact the prac\u00adti\u00adce that trea\u00adted you. The cau\u00adse can\u00adnot be relia\u00adbly deter\u00admi\u00adned from a sin\u00adgle pho\u00adto or an ear\u00adly look in the mirror.<\/p>\n

The following months: the effect wears off<\/h2>\n

The effect does not end on a fixed day. The signal bet\u00adween ner\u00adve and mus\u00adcle reco\u00advers and move\u00adment gra\u00addu\u00adal\u00adly returns, so lines may beco\u00adme more visi\u00adble again when you frown or smi\u00adle. Three to four months from the injec\u00adtion are usual\u00adly taken as a gui\u00adde, not from the day you first noti\u00adce a change.<\/p>\n\n\n\n\n\n\n\n\n\n
Time after injection<\/th>\nTypi\u00adcal course<\/th>\nWhat this means for you<\/th>\n<\/tr>\n<\/thead>\n
Imme\u00addia\u00adte\u00adly afterwards<\/td>\nThe effect on the mus\u00adcle is not yet visible.<\/td>\nThe later result can\u00adnot be jud\u00adged yet.<\/td>\n<\/tr>\n
Often after three to seven days<\/td>\nFirst chan\u00adges beco\u00adme noticeable.<\/td>\nThe effect is buil\u00adding up.<\/td>\n<\/tr>\n
After about two weeks<\/td>\nThe effect has often cle\u00adar\u00adly developed.<\/td>\nAn assess\u00adment makes sen\u00adse, fur\u00adther chan\u00adges are possible.<\/td>\n<\/tr>\n
In the fol\u00adlo\u00adwing months<\/td>\nMove\u00adment gra\u00addu\u00adal\u00adly returns.<\/td>\nVisi\u00adble expres\u00adsi\u00adon again does not imme\u00addia\u00adte\u00adly mean a com\u00adple\u00adte loss of effect.<\/td>\n<\/tr>\n
Usual\u00adly after about three to four months<\/td>\nThe usu\u00adal dura\u00adti\u00adon of effect has been reached.<\/td>\nIf you wish, the next steps can be discussed.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

This time\u00adline descri\u00adbes a typi\u00adcal cour\u00adse and is no pro\u00admi\u00adse of a spe\u00adci\u00adfic dura\u00adti\u00adon. What you per\u00adcei\u00adve as the end of the effect also plays a role: the first visi\u00adble move\u00adment or the lar\u00adge\u00adly com\u00adple\u00adte return to the start\u00ading point. The\u00adse are two dif\u00adfe\u00adrent moments.<\/p>\n

When is another treatment an option?<\/h2>\n

Having ano\u00adther tre\u00adat\u00adment is a per\u00adso\u00adnal decis\u00adi\u00adon, not an obli\u00adga\u00adti\u00adon. If the effect is wea\u00adring off and you are con\u00adside\u00adring a repeat, talk through how it went: the chan\u00adge achie\u00adved, any side effects and how much expres\u00adsi\u00adon you would like to keep.<\/p>\n

The pre\u00adscri\u00adbed inter\u00adval for the pro\u00adduct used must be obser\u00adved. The Swiss pre\u00adscrib\u00ading infor\u00adma\u00adti\u00adon of one pro\u00adduct appro\u00adved for expres\u00adsi\u00adon lines spe\u00adci\u00adfies at least three months bet\u00adween tre\u00adat\u00adments. Move\u00adment retur\u00adning ear\u00adly is the\u00adr\u00ade\u00adfo\u00adre no reason to aim for the shor\u00adtest pos\u00adsi\u00adble interval.<\/p>\n

More acti\u00adve sub\u00ads\u00adtance is not a gene\u00adral solu\u00adti\u00adon for a lon\u00adger dura\u00adti\u00adon eit\u00adher. The dose has to suit the mus\u00adcles and the tre\u00adat\u00adment goal. Exces\u00adsi\u00adve doses or over\u00adly fre\u00adquent injec\u00adtions can increase the risk of neu\u00adtra\u00adli\u00adsing anti\u00adbo\u00addies forming, which can impair the effect.<\/p>\n

At Swiss Der\u00adma Cli\u00adnic in Zurich, we tre\u00adat expres\u00adsi\u00adon lines with botu\u00adli\u00adnum toxin<\/a>. The\u00adre is no fixed num\u00adber of appoint\u00adments per year for this. Plea\u00adse bring details of pre\u00advious tre\u00adat\u00adments, even if they took place at ano\u00adther practice.<\/p>\n

When should you seek medical advice?<\/h2>\n

Befo\u00adre a tre\u00adat\u00adment, tell your doc\u00adtor about medi\u00adca\u00adti\u00adon, die\u00adta\u00adry sup\u00adple\u00adments, pre-exis\u00adting con\u00addi\u00adti\u00adons and pre\u00advious pro\u00adce\u00addu\u00adres. Con\u00addi\u00adti\u00adons invol\u00adving mus\u00adcle weak\u00adne\u00adss, known all\u00ader\u00adgies, infec\u00adtions in the area to be trea\u00adted, and pregnan\u00adcy or breast\u00adfee\u00adding are par\u00adti\u00adcu\u00adlar\u00adly important. This infor\u00adma\u00adti\u00adon can speak against tre\u00adat\u00adment or call for spe\u00adcial cau\u00adti\u00adon. Do not stop pre\u00adscri\u00adbed medi\u00adca\u00adti\u00adon on your own for an aes\u00adthe\u00adtic appointment.<\/p>\n

After a tre\u00adat\u00adment, a new\u00adly dro\u00ado\u00adping eyelid, visu\u00adal dis\u00adtur\u00adban\u00adces or noti\u00adceable mus\u00adcle weak\u00adne\u00adss should be asses\u00adsed by a doc\u00adtor prompt\u00adly. Do not wait for a sche\u00addu\u00adled check-up. If you have dif\u00adfi\u00adcul\u00adty swal\u00adlo\u00adwing, spea\u00adking or breathing, you need imme\u00addia\u00adte medi\u00adcal help via the emer\u00adgen\u00adcy num\u00adber 144.<\/p>\n

Even wit\u00adhout sym\u00adptoms, it makes sen\u00adse to get in touch if you noti\u00adce no effect or if it wears off much ear\u00adlier than after pre\u00advious tre\u00adat\u00adments. Tre\u00adat\u00adment area, dose and tech\u00adni\u00adque are among the things review\u00aded. A lack of effect alo\u00adne does not pro\u00adve that anti\u00adbo\u00addies have formed.<\/p>\n

We explain what we offer and the facial are\u00adas trea\u00adted on our page on botu\u00adli\u00adnum toxin tre\u00adat\u00adment in Zurich<\/a>. Which tre\u00adat\u00adment suits your fin\u00addings can only be asses\u00adsed individually.<\/p>\n

Frequently asked questions<\/h2>\n

Does the effect last equally long on the forehead and around the eyes?<\/h3>\n

Not neces\u00ads\u00ada\u00adri\u00adly. The trea\u00adted mus\u00adcles, the dose and the pro\u00adduct all influence the cour\u00adse. Three to four months are a gene\u00adral gui\u00adde, not a fixed dura\u00adti\u00adon for every facial area.<\/p>\n

Can the effect last longer?<\/h3>\n

Yes. In some peo\u00adp\u00adle a chan\u00adge remains visi\u00adble for lon\u00adger, and review artic\u00adles occa\u00adsio\u00adnal\u00adly descri\u00adbe cour\u00adses of up to about six months. This does not allow a pre\u00addic\u00adtion of your per\u00adso\u00adnal dura\u00adti\u00adon, eit\u00adher for the first tre\u00adat\u00adment or for later ones.<\/p>\n

Does each further treatment automatically last longer?<\/h3>\n

No. With repea\u00adted tre\u00adat\u00adments the effect may last lon\u00adger, but this does not hap\u00adpen relia\u00adbly in ever\u00adyo\u00adne. A fixed increase from the first to the second tre\u00adat\u00adment can\u00adnot be promised.<\/p>\n

How do I plan a treatment before a special occasion?<\/h3>\n

Dis\u00adcuss the occa\u00adsi\u00adon with the prac\u00adti\u00adce in good time. The effect is not visi\u00adble imme\u00addia\u00adte\u00adly and deve\u00adlo\u00adps indi\u00advi\u00addu\u00adal\u00adly, and brui\u00adsing can also occur. A par\u00adti\u00adcu\u00adlar appearance on a par\u00adti\u00adcu\u00adlar date the\u00adr\u00ade\u00adfo\u00adre can\u00adnot be assured.<\/p>\n

What happens if I do not want any further treatment?<\/h3>\n

You do not have to con\u00adti\u00adnue the tre\u00adat\u00adment. The mus\u00adcle-rela\u00adxing effect fades, move\u00adment returns and expres\u00adsi\u00adon lines may beco\u00adme more visi\u00adble again. If you want to stop becau\u00adse of side effects or an unwan\u00adted result, plea\u00adse still dis\u00adcuss this with the practice.<\/p>\n

This artic\u00adle does not replace a medi\u00adcal examination.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

How long botu\u00adli\u00adnum toxin lasts for expres\u00adsi\u00adon lines, when chan\u00adges beco\u00adme visi\u00adble and what mat\u00adters when asses\u00adsing the result and con\u00adside\u00adring ano\u00adther treatment.<\/p>\n","protected":false},"author":1,"featured_media":43256,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"wp_typography_post_enhancements_disabled":false,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-43258","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/swissdermaclinic.ch\/en\/wp-json\/wp\/v2\/posts\/43258","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/swissdermaclinic.ch\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/swissdermaclinic.ch\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/swissdermaclinic.ch\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/swissdermaclinic.ch\/en\/wp-json\/wp\/v2\/comments?post=43258"}],"version-history":[{"count":1,"href":"https:\/\/swissdermaclinic.ch\/en\/wp-json\/wp\/v2\/posts\/43258\/revisions"}],"predecessor-version":[{"id":43260,"href":"https:\/\/swissdermaclinic.ch\/en\/wp-json\/wp\/v2\/posts\/43258\/revisions\/43260"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/swissdermaclinic.ch\/en\/wp-json\/wp\/v2\/media\/43256"}],"wp:attachment":[{"href":"https:\/\/swissdermaclinic.ch\/en\/wp-json\/wp\/v2\/media?parent=43258"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swissdermaclinic.ch\/en\/wp-json\/wp\/v2\/categories?post=43258"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swissdermaclinic.ch\/en\/wp-json\/wp\/v2\/tags?post=43258"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}