# Lexicon – *A to Z.* > 50 terms in aesthetic medicine explained clearly: from botulinum toxin to cross-linking, with facts, questions and links to the relevant treatment pages. - Source: https://www.vivaderm.de/lexicon-en.html - Language: en - Publisher: VIVA DERM, Privatpraxis für ästhetische Medizin, Rosastraße 6a, 45130 Essen, Germany, +49 1520 8367711 - Responsible physician: Katayoun Mostaghimi (Fachärztin für Allgemeinmedizin) - Updated: 2026-10-05 50 terms, each on its own page: what it is, what it is used for, what you should know. Physician responsible, no advertising. ## All terms. - [Androgenetic alopecia](https://www.vivaderm.de/lexicon-androgenetische-alopezie-en.html) – Hereditary hair loss – receding temples and crown in men, a thinning p… - [Baby Botox](https://www.vivaderm.de/lexicon-baby-botox-en.html) – Colloquial term for very low-dose botulinum toxin that only softens fa… - [Blunt cannula](https://www.vivaderm.de/lexicon-kanuele-en.html) – A needle without a sharp tip that lets filler be distributed over an a… - [Botulinum toxin](https://www.vivaderm.de/lexicon-botulinumtoxin-en.html) – A protein that inhibits the signal from nerve to muscle for a few mont… - [Bruise (haematoma)](https://www.vivaderm.de/lexicon-haematom-en.html) – The most common side effect of injections: blood leaks from an injured… - [Bruxism](https://www.vivaderm.de/lexicon-bruxismus-en.html) – Grinding or clenching the teeth, often at night. Leads to jaw pain, de… - [Bunny lines](https://www.vivaderm.de/lexicon-bunny-lines-en.html) – Diagonal lines on the sides of the nose bridge that appear when laughi… - [Collagen](https://www.vivaderm.de/lexicon-kollagen-en.html) – The structural protein of the skin, which decreases with age. Micronee… - [Cross-linking](https://www.vivaderm.de/lexicon-vernetzung-en.html) – Chemical linking of the hyaluronic acid chains. The stronger the cross… - [Crow's feet](https://www.vivaderm.de/lexicon-kraehenfuesse-en.html) – Fan-shaped lines at the outer corner of the eye, caused by the eye's r… - [Deoxycholic acid](https://www.vivaderm.de/lexicon-desoxycholsaeure-en.html) – A derivative of the body's own bile acid used as the active substance … - [DGBT](https://www.vivaderm.de/lexicon-dgbt-en.html) – German Society for Aesthetic Botulinum Toxin Therapy – a professional … - [Elastin](https://www.vivaderm.de/lexicon-elastin-en.html) – The protein that gives the skin its stretch and recoil. It is hardly p… - [Expression lines](https://www.vivaderm.de/lexicon-mimische-falten-en.html) – Lines created by repeated muscle movement – frown lines, forehead line… - [Fat compartments](https://www.vivaderm.de/lexicon-fettkompartimente-en.html) – Facial fat does not lie in one layer but in separate pads stacked and … - [Filler](https://www.vivaderm.de/lexicon-filler-en.html) – Collective term for injectable substances that add volume or cushion w… - [Glabella (frown lines)](https://www.vivaderm.de/lexicon-glabella-en.html) – The region between the eyebrows. The vertical lines that form there ar… - [GOÄ (German scale of fees for physicians)](https://www.vivaderm.de/lexicon-goae-en.html) – The legal basis on which medical services are invoiced privately in Ge… - [Growth factors](https://www.vivaderm.de/lexicon-wachstumsfaktoren-en.html) – The body's own signalling proteins that control cell division, vessel … - [Hair cycle](https://www.vivaderm.de/lexicon-haarzyklus-en.html) – Every hair passes through a growth (anagen), transition (catagen) and … - [HWG (German Health Advertising Act)](https://www.vivaderm.de/lexicon-hwg-en.html) – The law regulating advertising for medical treatments. Among other thi… - [Hyaluronic acid](https://www.vivaderm.de/lexicon-hyaluronsaeure-en.html) – A sugar molecule found in the body that binds water. As a cross-linked… - [Hyaluronidase](https://www.vivaderm.de/lexicon-hyaluronidase-en.html) – An enzyme that breaks down hyaluronic acid within hours. Used to disso… - [Hyperhidrosis](https://www.vivaderm.de/lexicon-hyperhidrose-en.html) – Pathologically heavy sweating, usually of the armpits, hands or feet. … - [Informed consent (§ 630e BGB)](https://www.vivaderm.de/lexicon-aufklaerung-en.html) – The legally required conversation before every treatment about effect,… - [Injection lipolysis](https://www.vivaderm.de/lexicon-injektionslipolyse-en.html) – Injection of a substance (usually deoxycholic acid) that dissolves sma… - [Jawline](https://www.vivaderm.de/lexicon-jawline-en.html) – The line of the jaw from chin to jaw angle. Can be defined with firm h… - [Marionette line](https://www.vivaderm.de/lexicon-marionettenfalte-en.html) – Line from the corner of the mouth to the chin that makes the face look… - [Masseter](https://www.vivaderm.de/lexicon-masseter-en.html) – The large chewing muscle at the jaw angle. Botulinum toxin there eases… - [Mesotherapy](https://www.vivaderm.de/lexicon-mesotherapie-en.html) – Many superficial micro-injections of an active cocktail (vitamins, hya… - [Microneedling](https://www.vivaderm.de/lexicon-microneedling-en.html) – Fine needles create controlled micro-injuries in the skin and stimulat… - [Micronutrients](https://www.vivaderm.de/lexicon-mikronaehrstoffe-en.html) – Vitamins, minerals and trace elements the body needs in small amounts.… - [Nasolabial fold](https://www.vivaderm.de/lexicon-nasolabialfalte-en.html) – The fold from the side of the nose to the corner of the mouth. An anat… - [Off-label use](https://www.vivaderm.de/lexicon-off-label-en.html) – Use of a licensed medicine outside its officially licensed indication,… - [Photoaging](https://www.vivaderm.de/lexicon-photoaging-en.html) – Premature skin ageing from UV radiation: pigment spots, elastosis, dee… - [Platysma](https://www.vivaderm.de/lexicon-platysma-en.html) – The flat neck muscle whose edges become visible as vertical bands. Bot… - [Polynucleotides](https://www.vivaderm.de/lexicon-polynukleotide-en.html) – Building blocks derived from salmon DNA, injected to support skin rege… - [Private practice](https://www.vivaderm.de/lexicon-privatpraxis-en.html) – A practice without statutory-insurance accreditation: treatments for p… - [PRP (platelet-rich plasma)](https://www.vivaderm.de/lexicon-prp-en.html) – Plasma obtained from your own blood, enriched with platelets and growt… - [Ptosis (drooping eyelid)](https://www.vivaderm.de/lexicon-ptosis-en.html) – A temporarily drooping upper eyelid or lowered brow after botulinum to… - [Skin ageing](https://www.vivaderm.de/lexicon-hautalterung-en.html) – The interplay of genetically determined (intrinsic) and environmental … - [Skin booster](https://www.vivaderm.de/lexicon-skinbooster-en.html) – Soft, lightly cross-linked hyaluronic acid introduced across the skin.… - [Static lines](https://www.vivaderm.de/lexicon-statische-falten-en.html) – Lines that remain visible with a relaxed face – through volume loss, g… - [Tear trough](https://www.vivaderm.de/lexicon-traenenrinne-en.html) – The hollow between lower eyelid and cheek that emphasises dark circles… - [Thread lift](https://www.vivaderm.de/lexicon-fadenlifting-en.html) – Absorbable threads with barbs pulled under the skin to lift tissue. La… - [Topical anaesthetic cream](https://www.vivaderm.de/lexicon-cremebetaeubung-en.html) – An ointment with a local anaesthetic (usually lidocaine/prilocaine) ap… - [Tyndall effect](https://www.vivaderm.de/lexicon-tyndall-effekt-en.html) – A bluish shimmer when hyaluronic acid lies too superficially under thi… - [Units](https://www.vivaderm.de/lexicon-einheiten-en.html) – Botulinum toxin is dosed in units. They are not directly comparable be… - [Vascular occlusion](https://www.vivaderm.de/lexicon-gefaessverschluss-en.html) – Rare, serious filler complication: material enters a blood vessel and … - [Volume loss](https://www.vivaderm.de/lexicon-volumenverlust-en.html) – The decline of fat, bone and connective tissue in the face from the mi… ## Related pages. - [Short glossary](https://www.vivaderm.de/glossary-en.html) – All terms on one page - [Guides](https://www.vivaderm.de/ratgeber-en.html) – In-depth articles - [FAQ](https://www.vivaderm.de/faq-en.html) – Short answers ## Sources - [§ 630e BGB – duty to inform before treatment (German Civil Code)](https://www.gesetze-im-internet.de/bgb/__630e.html) - [DGBT – German Society for Aesthetic Botulinum Toxin Therapy](https://www.dgbt.de/) - [AWMF – German clinical practice guidelines](https://www.awmf.org/) --- This page is general information and does not replace medical consultation and informed consent (§ 630e BGB). No guarantee of results. Prices are guide prices per GOÄ. Quoting with attribution (VIVA DERM, Essen) is expressly permitted.