Our Highly Requested Deep Dive Into Spicule Skincare

Skincare trends come and go. Yet there’s no denying the excitement that comes along with discovering something so unique and different that you want to shout about it from the rooftops. That’s where the beauty world is with spicules. Spicules are often compared to microneedling because both produce controlled microchannels in the skin, increasing ingredient absorption and creating a mild exfoliating and stimulating effect.

While the spicule trend originates in Korea, with K-beauty brands early adopters of the advanced delivery system, Yanghee Paik, CEO and co-founder of Rael, notes that spicule technologies have been evolving for years. “As consumers increasingly look for at-home clinical-level results without the downtime or irritation of aggressive treatments, spicules have naturally started to trend.”

Intriguing? Absolutely. But there’s quite a lot to unpack about the buzzy technology that’s showing up in everything from serums to creams to masks. Read on to learn everything you need to know about spicule skincare.

What Are Spicules?

These tiny, needle-like structures, derived from specific plants or silica-rich marine sponges and corals, or synthetically created, help deliver active ingredients into the skin. “Think of them as topical microneedles suspended in a serum or cream,” Dr. King says. “When massaged into the skin, they create superficial microchannels.”

According to Dr. Engelman, applying spicules topically to the skin allows them to temporarily embed superficially. Most dissolve or shed as part of the skin’s natural turnover cycle within a few days. “Because they act as biological microstimulators, they nudge the skin into renewal mode and help ingredients travel deeper so dullness, mildly uneven texture and tone, and early fine lines can be addressed,” she shares.

However, not all spicules are created equal. “The length, refinement, and formulation context matter tremendously,” Paik says. “If spicules are too long or not properly processed, they can feel too intense on the skin, increase irritation, trigger prolonged inflammation, and disrupt the barrier.”

The Benefits of Using Spicules

The main benefit of spicules is their ability to enhance the penetration of active ingredients. As Dr. King explains, spicules trigger a mild inflammatory cascade, similar in concept to microneedling, but far more superficial. Because they create microscopic disruptions in the stratum corneum, they can increase permeability and delivery of active ingredients, such as peptides and growth factors, which she says may stimulate keratinocyte turnover, increase growth factor signaling, and support collagen production over time.

There’s also the exfoliation aspect of spicules, which amplifies skin cell turnover to help improve skin texture over time. “Because they physically disrupt the uppermost layer of skin, they can improve rough texture and enhance radiance,” Dr. King says.

Like other skincare products, the benefits are most noticeable when spicules are used properly. Paik recommends applying spicule products at night when the skin naturally repairs itself. Spicule newbies should start with a low-level product, like VT Cosmetics Reedle Shot 50, and always focus on barrier support afterward. If a serum doesn’t work for you, there are also sheet masks infused with spicules, like Ya-Man Medi Lift Needle Lift Firming Mask. She also recommends avoiding layering on strong exfoliants and retinoids initially and always prioritizing sunscreen during the day.

Do Spicules Actually Work?

Properly formulated spicules can help improve the skin when used as part of a consistent, well-rounded skincare routine. As Paik explains, spicules safely pierce the skin’s surface, gently creating temporary microscopic pathways that increase permeability and accelerate the appearance of clearer skin. Since their mechanism of action is based on controlled microstimulation of the skin’s repair response, the skin starts to renew and strengthen, which Dr. Engelman says increases cell turnover and supports mild collagen signaling. “They can also lead to an increase in cytokine and growth factor signaling,” Dr. King adds.

Since spicules are a delivery system-based technology rather than an active ingredient, they can ‘push’ actives into the skin, improving absorption so the skin can reap the benefits. Some, like Medicube One Day Exosome Shot 7500, are formulated with active ingredients coated onto the spicules, eliminating the need to apply them separately. “The temporary increase in skin permeability likely works best for texture refinement and boosting penetration of well-formulated actives,” Dr. King says.

Can All Skin Types Use Spicules?

Most skin types can tolerate spicules, depending on their concentration and other ingredients in a specific product. However, Dr. Engelman advises anyone with rosacea, eczema, active acne, or a damaged barrier to avoid them.

But thanks to new advancements, some sensitive skin types may not have to sit this trend out. Enter: shorticules, a first-to-market innovation from Rael, found in their Miracle Clear Microcrystal Activated PM Serum 2000. It uses shorter spicules coated with azelaic acid to create pathways that enhance the absorption of ectoin and allantoin, delivering results that are gentle enough for sensitive skin while respecting the skin barrier.

Spicule Skincare vs. Microneedling

Spicules are often compared to microneedling because both create microinjuries to drive ingredients deeper into the skin, but there are several differences between the two. As Dr. King explains, spicule creams have been positioned as at-home alternatives to in-office microneedling, without devices, needles, or downtime. “People want in-office results at home, and there’s growing interest in ingredient penetration enhancement,” she says. While spicules aren’t a shoo-in alternative to the in-office treatment, Paik says they’re more of a gentle evolution that fits into everyday skincare routines.

• The Depth: As Dr. Engelman explains, spicules work superficially, whereas microneedling reaches deeper into the skin to stimulate collagen more effectively and achieve more dramatic results.
• Skin Concerns: Professional microneedling treatments remain the gold standard for improving the appearance of enlarged pores, scars and acne scars, uneven texture, and wrinkles, but Dr. King says spicules don’t achieve the same collagen remodeling as device-based microneedling.
• Downtime: Since microneedling is far more invasive than a serum with spicules, it can cause redness, tenderness, and downtime, especially for sensitive skin. Spicules have virtually no downtime.
• Potential Risks: Microneedling is generally well tolerated, but there are potential risks, including mild redness, swelling, sensitivity, and tight, flaky skin. Dr. King says there is a much lower risk of adverse effects with spicules, but they also come with lower potency.
• What They Feel Like: Spicule-packed skincare is said to be easier to tolerate than microneedling, which often requires topical numbing cream to make the treatment more comfortable. Since spicules create low-grade stimulation, Dr. Engelman says some cause a slightly prickly sensation upon application. On the other hand, microneedling feels more like tiny pricks on the skin with a slight sting.
• The Results: You’ll see mild improvement with spicule skincare products simply because they are not able to penetrate the skin as deeply as microneedling, so collagen stimulation isn’t nearly as profound.

The Final Takeaway

It’s a well-known skincare fact that creating microchannels allows for active ingredients to be delivered deeper for more profound benefits and results. And that’s just what spicules do. Even though spicules are rather new, expect innovations to make their mark pretty soon.

“Exosome-coated spicules and precision-sized microspear technology will come next as these aim to improve delivery while minimizing irritation,” Dr. Engelman says. “Some formulas now combine spicules with growth factors or fermented ingredients. There is also movement toward biomimetic spicules for consistency.”

Overall, spicules can be a valuable addition to even the simplest skincare routines—enhancing the performance of your existing products and in-office treatments rather than replacing them.