Large Pores: Iris vs Nova — Which Device Targets Which Cause

Open your front camera, zoom in on your nose, and there they are—the pores that no toner, no mask, no "pore-minimizing" primer has ever truly shrunk. You're not imagining them, and you're not doing anything wrong. Pore size is one of the most stubborn skin concerns in dermatology because the term "pores" actually encompasses several distinct problems that wear the same costume.

That's also why two MimiSilk devices—the Iris 1450nm fractional laser and the Nova 415nm & 830nm anti-acne device—both address pores, and why customers keep asking us which one to buy. Iris is an anti-aging laser that resurfaces and rebuilds dermal collagen. Nova is a spot-treatment device designed for individual pimples, blackheads, and inflamed lesions. Once you understand which cause is making your pores visible, the device choice is straightforward—and for many people, both have a place.

First, what is a pore, and why does it look "large"?

A pore is the visible opening of a pilosebaceous unit: a tiny tunnel in the skin that contains a hair follicle and a sebaceous (oil) gland. Pore size itself is mostly genetic and cannot be permanently shrunk. What can change is how visible a pore is, and visibility comes from one (or a combination) of four root causes.

Cause 1: Excess sebum output

The sebaceous glands on the nose, central forehead, and chin are simply larger than glands elsewhere on the face, which is why the T-zone produces more oil and shows the most prominent pores. When oil output is high, sebum fills the pore canal and stretches it open from the inside.

Cause 2: Congestion: blackheads, whiteheads, and sebaceous filaments

When sebum mixes with dead skin cells and oxidizes inside the pore, you get a blackhead. Even without true blackheads, every pore on an oily T-zone contains pale, threadlike "sebaceous filaments" that make the opening look darker and wider. Clogged pores are the most reversible cause of pore visibility, but they come back quickly if the underlying oil-and-bacteria environment isn't controlled.

Cause 3: Active or recurring breakouts that stretch the pore wall

Inflammatory acne—papules and pustules—physically widens and damages the pore wall. Each flare deposits inflammatory damage that, if it keeps repeating, leaves the pore permanently larger than it started.

Cause 4: Loss of dermal firmness (the "aging pore")

Around the rim of every pore is a tiny scaffold of collagen and elastin. As we age, sun exposure and collagen loss weaken that scaffold, and the pore opening loses its circular tension and begins to look elongated, teardrop-shaped, or comma-shaped, which is the classic "aging pore." This is the version of large pores that no exfoliant or cleanser can fix, because the problem isn't on the surface; it's in the dermis underneath.

Once you can identify your root cause, the device choice becomes obvious.

How the MimiSilk Iris targets large pores

The MimiSilk Iris is a 1450nm non-ablative fractional laser. It treats the full face in five zones using tiny beams of 1450nm light that gently warm the deeper layers of your skin—the layers where pore visibility actually originates. That gentle warmth does three things for your pores:

1. It rebuilds firmness around each pore.
Every pore sits inside a tiny scaffold of collagen and elastin. When that scaffold sags, the pore opening stretches and becomes more visible. Iris signals your skin to produce new collagen and elastin over the following weeks, which tightens the scaffold and lets each pore close back into a smaller, rounder shape. This is the only mechanism that genuinely improves "aging pores"—you can't exfoliate them away, but you can rebuild what's underneath them.

2. It gently quiets oil production.
The 1450nm wavelength is the same one used in clinics to calm overactive oil glands, and it produces a modest, gradual reduction in sebum output over time. Iris delivers about a quarter of clinical energy, so think gentle, cumulative softening of shine—not a dramatic shutdown.

3. It smooths the skin around each pore.
Iris also addresses fine lines, shallow acne marks (up to about 200 microns deep), and uneven texture. When the skin around a pore is smoother, the pore itself catches less shadow and looks visibly smaller—even before the firmness mechanism kicks in.

Iris is the right primary device for:

• "Aging pores"—elongated, teardrop, or comma-shaped openings on the cheeks
• Pores accompanied by fine lines, dullness, or laxity
• Pores left behind by past acne, with shallow textural damage
• T-zone pores in users who also want collagen, tone, and overall renewal

Iris is not the right device for:

• Treating an active pimple itself (use Nova on the lesion instead)
• Sebum problems alone in users with otherwise smooth, young skin

How the MimiSilk Nova targets large pores

The MimiSilk Nova is a compact, pen-style spot-treatment device built on our IBE™ Triple Photoelectric technology—415nm blue light, 830nm near-infrared light, and gentle electrical pulses, all delivered in a single 8-second scan applied directly to one pimple or blackhead at a time.

1. 415nm blue light targets the bacteria inside the pore.
Blue light around 415nm is one of the most studied wavelengths for acne—it's absorbed by acne-causing C. acnes bacteria and destroys them from the inside. Nova hits the true 415nm peak and clears 77.14% of P. acnes per session, while the 460–465nm blue light in most LED masks is only about 10% as effective. Fewer bacteria means less inflammation—and less inflammation means less long-term pore-wall stretching.

2. 830nm near-infrared light calms inflammation and speeds healing.
The 830nm wavelength reaches much deeper than blue light—down to the dermis at 300–600 µm, versus only 10–30 µm for typical LED blue. At that depth, it supports tissue repair and reduces redness. It also clears 98.8% of S. aureus (another acne-related bacterium) and cuts post-breakout redness and recurrence by up to 60%. The result: less redness around the pore, faster pore-wall recovery after a breakout, and a calmer environment that's less likely to flare again.

3. Gentle electrical pulses unclog the pore.
Low-current electrical pulses physically help loosen the plug of oil, dead skin, and bacteria sitting inside a clogged pore. In Nova's Blackheads and Whiteheads mode, this delivers a 100% unclog effect when applied directly to a clogged opening.

How and how often to use it:
Nova is a spot device. Each pimple gets an automatic 8-second scan, and you can repeat it 1 to 4 times on the same pimple within 24 hours—don't exceed 5 sessions per day total. 

Nova is the right primary device for:

• Individual pimples, papules, pustules, blackheads, and whiteheads
• Recurring breakouts that keep stretching the pore wall
• Sweat-triggered acne and hormonal flare-ups
• Pores on the nose, central forehead, and chin in users whose main complaint is congestion or active acne

Nova is not the right device for:

• Full-face anti-aging or whole-face pore-tightening—it's a spot tool
• "Aging pores" without an oil or acne component
• Loss of firmness, fine lines, or laxity-related pore elongation

A side-by-side translation

Can you use Iris and Nova together?

Yes, and because Nova is a spot tool and Iris is a full-face tool, the two were designed to coexist. The rule is simple:

When you use Iris on your face, simply skip the areas with active pimples. Treat those individual spots with Nova instead.

In practice, that means:

• On your Iris day, run your normal 8-weeks-on/4-weeks-off cycle on the cheeks, forehead, periorbital area, upper lip, and chin, but if there's an inflamed pimple, lift the Iris off that specific spot and move around it. Iris is designed for intact, unbroken, non-inflamed skin, so this is what you'd want to do anyway.
• Treat the avoided pimples with Nova—one 8-second scan per spot, repeated up to 4 times within 24 hours if needed, never more than 5 times per day total. 
• Once the pimple has resolved, that area becomes fair game again for your next Iris session.

You can use Nova every day on active lesions. You use Iris on its scheduled cycle. The two devices do not compete because they're operating in different places: Iris on the full-face skin around the lesions, Nova on the lesions themselves.

What pores will not look like after either device

Honest expectations protect results:

• Pores will not disappear. Genetics set the floor for pore size. Devices reduce visibility, not anatomy.
• You will not see the same-week shrinkage from Iris. Iris remodelling unfolds over 60–90 days. Nova can show overnight improvement on an early pimple, but a lasting pore-visibility change still takes weeks.
• Maintenance is forever. Both oil production and collagen loss are ongoing biological processes. Periodic cycles, not one-off treatments, are what keep pores looking refined long-term.

The non-device routine that makes either device work better

Whichever device fits your root cause, the following habits multiply the result:

• Daily SPF 30+ PA++++, the level MimiSilk recommends after Nova sessions and the same baseline for Iris. UV is the single largest accelerator of collagen loss around pores.
• Gentle cleansing, twice daily. Over-stripping the barrier triggers compensatory oil production and makes pores worse, not better.
• Pause harsh actives. Retinoids, AHAs, BHAs, scrubs, and chemical peels conflict with Iris recovery windows.
• Sleep, hydration, and stress management. Cortisol and androgens both raise sebum output. Skincare cannot outrun chronic sleep deprivation.

Conclusion

If the pores you see in the mirror are about active pimples, blackheads, and recurring breakouts, the device for those lesions is the MimiSilk Nova—used directly on each spot, up to 4 times in 24 hours, and never more than 5 times in a day. If they're about firmness, texture, fine lines, and "aging" pore shapes, your device is the MimiSilk Iris, used on its 8-weeks-on/4-weeks-off full-face cycle. And if your skin honestly has a little of both—which is the most common reality for adults in their late 20s through 40s—run them together: Iris on the face, going around active pimples; Nova on those pimples themselves.

The most useful thing you can do today is stop thinking of "large pores" as one condition and start identifying which cause is making yours visible. The right device follows naturally from that answer.

 

Safety note: Both MimiSilk Iris and Nova are intended for adults 18 and older, and neither is safe during pregnancy. Always read your device manual and stop use if you experience persistent irritation, broken skin, or any reaction outside what is described in the user guide.

 

Sources

Sorbellini E. et al. Low-level red plus near infrared lights combination induces expression of collagen and elastin gene/proteins in fibroblasts. Lasers Med Sci, 2021. Pubmed 33594706. pubmed.ncbi.nlm.nih.gov/33594706

Antonio J.R. et al. Antimicrobial effects of blue light therapy against Cutibacterium acnes. PMC, 2023. pmc.ncbi.nlm.nih.gov/articles/PMC10920142

Nguyen J. et al. Efficacy of Blue Light Therapy in Reducing Cutibacterium acnes—Trial Protocol, 2020. clinicaltrials.gov

Dermalogica. Understanding Large Pores: Causes and Solutions. 2025. dermalogica.com

Spartanburg Dermatology. Large Pores? How to Address the Problem. 2020. spartanburgderm.com