Spicule Treatment (Sponge Spicules)

Massage the spicule-containing serum into clean, dry skin in circular motions for 1–2 minutes. The marine-sponge spicules physically embed in the upper stratum corneum, creating micro-channels and triggering a tingling sensation that lasts hours. Layer follow-up actives (peptides, niacinamide, hyaluronic acid serum) immediately to take advantage of the temporary penetration window. The spicules are eventually metabolized or shed naturally over 24–48 hours.

Mild prickling sensation that intensifies over 30 minutes and lasts 4–8 hours. Mild redness possible. Skin may feel sensitive for 24 hours. Some users experience small bumps or flaking 2–3 days later as the spicules clear. Avoid heavy occlusives, retinol, acids, and active workouts for 24 hours after.

Spicules are microscopic, sharp silica structures harvested from marine sponges (most commonly Spongilla lacustris), which are then suspended in a serum or cream base. When massaged into the skin, the spicules physically penetrate the upper layers of the stratum corneum, creating thousands of micro-channels — a mechanism conceptually similar to microneedling but at home and with a much shallower depth. The trend exploded in K-beauty in 2024–2025, championed by brands like Cellaven and several Olive Young indie launches. The proposed mechanism: increased penetration of layered actives (typically peptides, niacinamide, or centella) plus mechanical stimulation of cell turnover. Reality check: spicules are a real physical exfoliant with measurable effects on absorption, but the comparison to professional microneedling is marketing rather than dermatology — the depth and precision are completely different. Causes a notable tingling/prickling sensation for 4–8 hours post-application. Best used 1–2x weekly, never on inflamed or compromised skin.