The Biolage Strength Recovery Deep Treatment Sachet delivers an intensive dose of care to restore damaged and fragile hair. Enriched with vegan squalane and plant proteins, it deeply nourishes and strengthens strands, leaving hair soft, shiny and resilient. Perfect for weekly repair rituals or post-salon treatments. Single-use sachet format Deeply repairs and strengthens hair Improves softness, shine and manageability USE Apply generously to clean, towel-dried hair. Leave on for 3–5 minutes. Rinse thoroughly. Use 1–2 times a week as needed.