Tyndall effect.
A bluish shimmer when hyaluronic acid lies too superficially under thin skin – typical in the tear trough. Can be corrected with hyaluronidase.
Tyndall effect with fillers explained: physical cause, why the tear trough is especially affected, prevention through deep placement and soft gels
A closer look.
The Tyndall effect is a physical phenomenon: short-wave blue light is scattered more strongly by small particles than long-wave red light – the same effect makes the sky look blue. If a hyaluronic acid deposit lies directly under thin skin, it scatters the light and appears as a bluish, sometimes slightly raised shimmer.
Affected are mainly areas with very thin skin: tear trough, lower lid, fine lip lines. To prevent it, only soft, lightly cross-linked gels are used there, in small amounts and placed deep on the bone – often with a blunt cannula.
If the effect occurs anyway, it does not disappear on its own because the material stays for months. The solution is simple: hyaluronidase dissolves the deposit; after two to four weeks deeper re-treatment is possible. The Tyndall effect is unpleasant but not a health risk.
This lexicon entry is general information and does not replace the medical consultation required under German law (§ 630e BGB).
At a glance.
A question about Tyndall effect? Send us a short WhatsApp message – we usually reply the same working day.
Ask via WhatsAppFrequently asked questions.
Does the blue shimmer go away on its own?
Only once the material is broken down – that can take many months. Hyaluronidase solves the problem in days.
Can this happen with Botox?
No, botulinum toxin leaves no deposit.
Sources and further reading.
- NHS: Dermal fillers – patient information
- MPDG – German medical devices act (fillers are medical devices)
- BfArM – Federal Institute for Drugs and Medical Devices
- DGPRÄC – German Society of Plastic, Reconstructive and Aesthetic Surgeons
- § 630e BGB – duty to inform before treatment (German Civil Code)
- DGBT – German Society for Aesthetic Botulinum Toxin Therapy
- AWMF – German clinical practice guidelines
External links open in a new window; their operators are responsible for their content. Medical responsibility for this page: Katayoun Mostaghimi, specialist in general medicine. Last updated: 2026-10-05.
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