Teosyal is a range of hyaluronic acid fillers manufactured by Teoxane, a Swiss laboratory founded in Geneva in 2003 and dedicated exclusively to HA-based aesthetic products. Teosyal is CE-marked and used by practitioners across Europe, the Middle East, and Asia.

What distinguishes Teosyal is its RHA (Resilient Hyaluronic Acid) technology. RHA uses a gentle, low-level cross-linking process that preserves the natural elasticity and structure of hyaluronic acid molecules. The result is a filler that moves with facial expressions rather than resisting them — critical for areas like the lips and nasolabial folds where the face is constantly in motion.

Teosyal also has a dedicated undereye product — Redensity II — specifically formulated for the delicate tear trough area, making it one of the few filler brands with a purpose-built product for this demanding treatment zone. For transparent cost information across all filler brands, see our dermal filler pricing page.

Teosyal Kiss

Purpose-built for lip enhancement. RHA technology ensures the lips move and feel natural. Provides volume, projection, and definition while maintaining softness during talking, kissing, and eating.

Duration: 6–9 months

Teosyal Redensity II

Purpose-designed for undereye (tear trough) treatment. Contains HA plus a complex of amino acids, antioxidants, vitamins, and minerals. Lower density reduces Tyndall effect risk. One of the few fillers specifically formulated for this delicate area.

Duration: 9–12 months

Teosyal Ultra Deep

Highly cohesive filler for deep structural enhancement. RHA technology maintains definition during movement. Deep periosteal placement for jawline, chin, and cheek contouring.

Duration: 12–18 months

Teosyal Global Action

Versatile medium-density filler for nasolabial folds, marionette lines, and moderate volume correction. Good balance of structure and flexibility for areas with regular movement.

Duration: 8–12 months

Most filler manufacturing processes use high levels of chemical cross-linking to make HA gel last longer in tissue. The trade-off is that heavily cross-linked HA becomes stiffer and less able to move naturally with the face.

Teoxane’s RHA process uses minimal, gentle cross-linking that preserves the natural chain length and elasticity of HA molecules. The result is a filler that is resilient — it stretches when you smile and returns to shape at rest, rather than sitting as a static mass. This makes Teosyal particularly effective for dynamic facial areas.

• Natural movement during expressions
• Stretches and compresses with the face
• No stiff or frozen appearance
• Preserves natural HA elasticity
• Excellent for lips and mobile areas

• Lips — Kiss (natural feel, soft movement)
• Undereye — Redensity II (purpose-built)
• Jawline — Ultra Deep (strong with movement)
• Folds/lines — Global Action (balanced)