Hair thinning can be one of the most visible signs of ageing, and for many, one of the most emotionally impactful. The CALECIM® Advanced Hair System offers a science-backed solution that helps reactivate dormant follicles, reduce inflammation, and visibly improve hair thickness and density without harsh chemicals or hormones.

Powered by the same PTT‑6® technology found in CALECIM®’s award-winning skincare, this treatment taps into regenerative stem cell science to deliver real results from root to tip. Derived from ethically sourced umbilical cord lining stem cells - one of the most potent, youthful cell sources available, PTT‑6® contains no live cells but captures the powerful regenerative signals these cells send out. These signals stimulate hair follicle growth, calm chronic inflammation (a major cause of hair loss), and support the scalp’s natural ability to grow stronger, healthier hair.

Research shows that PTT‑6® can:

• Increase hair follicle cell production by 24%
• Decrease inflammatory signals by 30×
• Shift follicles back into the anagen (growth) phase to tackle the key causes of thinning

The CALECIM® Advanced Hair System

The system is a targeted serum formulated to deliver PTT‑6® directly to the scalp where it’s needed most. The lightweight, fast-absorbing formula supports a healthy scalp environment by reducing inflammation and encouraging hair follicles to re-enter the active growth phase.

Designed for both professional and at-home use, it is paired with the Calecim Activator which stimulates the scalp before treatments to boost absorption and maximize results. The treatment protocol includes an intensive 6-week application phase, with serum applied twice weekly. Followed by a 3-month maintenance phase, with weekly applications to sustain follicle activation and hair growth. With consistent use of the system you can expect:

• 16% increase in hair shaft thickness
• 14% increase in visible hair count
• 15% more active follicles per cm² after 12 weeks

With more visible improvements often seen from 6 weeks onward.

Suitable for men and women in early-to-mid stages of hair thinning (Norwood I–V for men, Ludwig I–II for women), the formula contains no hormones or harsh chemicals. It’s gentle on sensitive scalps and has a proven safety record with no reported side effects.

Thicker, stronger, and healthier hair is just the beginning. With the CALECIM® Advanced Hair System, you can help your scalp regenerate through powerful, science-led communication between your skin and your cells.

Shop the full CALECIM® Collection at Sweet Squared from Monday 16th June.