Pinpoint Coagulation™ Technology for Pigmented Lesions

Pinpoint Coagulation™ is LINLINE’s selective method for treating epidermal and dermal hyperpigmentation with Q-switched nanosecond pulse trains (Ruby 694 nm and Alexandrite 755 nm). It’s engineered to coagulate melanin-rich cells only where pigment is concentrated, while sparing normally pigmented skin to minimize burns, scarring, and rebound pigmentation. 

How it works

Pulse trains, not single hits. Energy is delivered as optimised “packets” (trains) of nanosecond pulses. Each micro-pulse warms melanin granules just enough to start heat build-up without blasting surrounding tissue. 

• Between-granule hot spots. In hyperpigmented foci where melanin granules sit closer together, heat waves from neighbouring granules meet and sum, pushing temperature between the granules to a coagulative threshold across successive pulses. Areas with normal melanin density simply dissipate the heat and remain intact. This is the essence of pinpoint coagulation.
• Selective by physics, not force. Short (1–10 ns) pulses cause a non-linear rise in melanin absorption, converting energy into heat and gentle acoustic waves that coagulate pigment-laden cells without mechanical tearing. 

Why it’s safer than “brute-force” methods

• Compared with ablative lasers: Removing pigment by vaporising tissue (CO₂/Er:YAG) risks depigmentation and scarring, especially for deeper lesions. Pinpoint Coagulation targets melanin clusters without ablation.  
• Compared with long-pulse/ IPL: Long thermal pulses or broad-band light spread heat to all chromophores, often under-treating deep pigment or provoking PIH at higher energies. Pinpoint Coagulation confines heat where melanin is densest. 

Indications

• Epidermal & dermal hypermelanosis: lentigines (solar/age spots), freckles, melasma/chloasma, post-inflammatory or post-traumatic hyperpigmentation, and select congenital lesions (e.g., “café-au-lait” macules; limited number).
• Delivered on the MULTILINE™ platform with interchangeable Q-switched Ruby 694 nm and Alexandrite 755 nm emitters tailored for melanin targeting. 

Why choose LINLINE’s Pinpoint Coagulation™

• Selective: coagulates only melanin-rich cells; normal skin stays below coagulation threshold.
• Effective for deeper lesions without ablation or mechanical injury.
• Integrated platform: MULTILINE™ hosts Ruby/Alex Q-switched emitters with stable output and pre-programmed settings for reproducible results.