What are spicules? The K-beauty skincare technology everyone is talking about

Few beauty movements have reshaped skincare quite like K-beauty. It has consistently stayed ahead of the curve, turning complex cosmetic science into products that feel accessible, desirable, and often years ahead of the rest of the world. Now, the latest innovation making its way from Korean beauty clinics and laboratories into skincare routines worldwide is spicule technology. Traditionally derived from marine or freshwater sponges, these are tiny, needle-like structures that create temporary pathways within the skin. Spicules have rapidly become one of the most discussed skincare launches of the year, promising to blur the line between topical skincare and treatment-inspired results.

MORE THAN EXFOLIANT

“When applied topically, they gently create microchannels that allow ingredients such as peptides, niacinamide, and hyaluronic acid to penetrate more effectively,” explains Dr Geetika Mittal, Medical Director and Founder of ISAAC Luxe.

The easiest mistake to make is assuming spicules are simply another exfoliating trend. They are often compared to acids, scrubs, and even microneedling, but they don’t fit neatly into any of those categories. “Unlike chemical exfoliants, which work by dissolving the bonds between dead skin cells, spicules create a mechanical effect, loosening surface debris while helping active ingredients travel further into the skin,” says Dr Geetika Srivastava, Dermatologist and Founder, Influennz Clinic.

The result is a technology that doesn’t position itself as an ingredient hero, but as an ingredient enhancer. Rather than introducing a new active into a routine, spicules are designed to improve how existing actives perform.

SKINCARE’S DELIVERY SYSTEM ERA

The rise of spicules also says something about today’s beauty consumer. Increasingly educated and results-driven, shoppers are looking for products that sit somewhere between traditional skincare and professional treatments.

For years, skincare innovation revolved around discovering the next breakthrough molecule. Consumers learned the language of retinoids, peptides, ceramides, and vitamin C, while brands raced to formulate increasingly sophisticated ingredient cocktails. Today, the focus appears to be shifting.

“There is growing awareness that even excellent ingredients are only as effective as their ability to reach the right layers of the skin,” says Dr Priyanka Sharma, Co-founder, Director, and Chief Dermatologist at V6 Clinics.

That shift has fuelled growing interest in delivery technologies, from encapsulation systems and liposomes to nano-formulations and, now, spicules. Attention is increasingly turning from a formula’s composition to its efficacy once it comes into contact with the skin.

HYPE MEETS SCIENCE

Yet as excitement around spicules continues to build, so does the tendency to compare them with professional microneedling. The resemblance is understandable: both approaches rely on controlled stimulation and both are often marketed as ways to encourage skin renewal.

The similarities, however, have limits. “Micro-needling uses a physical device to puncture the skin and reach depths of up to two millimetres,” says Dr Mittal. “Spicules are massaged topically and work only at the surface.” While the science behind enhanced ingredient penetration is promising, long-term clinical data remains limited. “The concept isn’t entirely new, particularly within Korean beauty,” says Srivastava. “But robust, independent long-term studies are still lacking.”

Sensitive skin types, particularly those dealing with rosacea, eczema, active acne, or a compromised barrier, should approach the technology carefully and avoid pairing it immediately with strong exfoliating acids. “Peptides, retinoids and professional procedures have far more proven benefits and longer safety records,” says Mittal. “Spicules are an add-on to improve delivery, not a replacement.”

The bigger story, however, may not be spicules themselves. Their popularity signals a new chapter in skincare—one where innovation is no longer solely about discovering the next miracle ingredient, but about finding smarter ways to deliver the ingredients we already know work.

This article originally appeared in Harper's Bazaar India's June-July 2026 print issue.

Lead image: Getty Images and The Brand

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