The Zero Exosome Shot is medicube's viral "spicule" serum — a needle-shaped, microneedling-inspired formula sold in three strengths (2,000 / 7,500 / 25,000 PPM) that's built to physically deliver exosomes and actives into the skin. What comes up in nearly every review before anything else is the sensation: this is a serum people can genuinely feel working, for better or worse. That sensory intensity is arguably the most important thing to understand before buying, since it shapes almost every other opinion in the reviews below.
What reviewers consistently praised
Several reviewers reported visibly brighter, smoother-looking skin within days of starting, with one comparing the results favorably to professional microneedling treatments they'd had done in-office. The three-step routine (Exosome Shot, followed by a serum, then a moisturizer) was repeatedly described as simple enough to stick with, and reviewers who paired it with medicube's companion products noted the pore and texture improvements felt more noticeable than using the shot alone.
What reviewers consistently pushed back on
The tingling is real, and reviewers are consistent about that — it's described as ranging from a mild prickling to a noticeable stinging sensation, particularly on thinner or more reactive areas of the face, and particularly at the stronger PPM levels. More than one reviewer specifically warned against pairing it with retinol or other strong actives in the same routine, and recommended patch-testing and starting with the mildest strength if you're new to the category. A couple of reviews also noted the bottle is on the small side for the price.
What reviewers liked
- Visibly brighter, smoother skin reported within days for several reviewers
- Simple three-step routine that's easy to stick with
- Stronger results when paired with medicube's companion serum and cream
- Three PPM strengths let you match intensity to skin tolerance
What reviewers flagged
- Tingling/prickling sensation is consistently reported, sometimes described as stinging
- Not recommended alongside retinol or other strong actives
- Small bottle size relative to price, per a few reviewers
- Requires patch-testing — not universally comfortable for reactive skin
Who this seems to fit
Based on the pattern across reviews, this fits people chasing visible pore and texture improvements who don't mind an active, noticeable sensation as part of the process — ideally starting at the mildest 2,000 PPM strength. Reviewers are fairly consistent that this isn't the pick for anyone with a compromised skin barrier, an active flare-up, or skin that reacts easily to mild acids and fragranced actives. Anyone who prefers a purely gentle, no-sensation skincare routine will likely find this too intense regardless of the potential results.
How it compares to alternatives
Within medicube's own lineup, reviewers frequently mention pairing this with the brand's Booster-H device, which is designed to help actives penetrate more effectively — several reviews note that using the serum without any delivery-boosting step produces noticeably milder results than what's shown in viral social content, where the device is often used alongside it. Compared to traditional at-home microneedling rollers, reviewers describe this as a gentler, more novice-friendly alternative that doesn't require learning a rolling technique, though the trade-off is less control over how deep the "needling" sensation goes. Against other K-beauty brightening serums without the spicule delivery mechanism, this one is consistently described as more intense but faster-acting, which lines up with why reviewers repeatedly recommend starting at the lowest 2,000 PPM strength rather than assuming more is better.
What long-term owners mention
Reviewers who've used this over several months, rather than just an initial trial period, mention a few consistent patterns. Skin texture improvements are described as holding up with continued regular use, rather than being a one-time novelty effect that fades. A number of longer-term users report gradually working up from the 2,000 PPM version to the 7,500 PPM strength as their skin built tolerance, rather than starting strong — this progression comes up often enough in reviews to be treated as a de facto recommended approach rather than an official instruction. On the negative side, a subset of long-term reviewers mention the tingling sensation never fully subsides even after months of regular use, which for some became a reason to stop rather than something they adjusted to.
Before you buy: what to check
Strength selection matters more than almost anything else with this product — reviewers are near-unanimous that first-time buyers should start with the 2,000 PPM version rather than assuming higher numbers simply mean better results faster. If you currently use retinol, prescription actives, or are in the middle of any other intensive treatment, check with reviewers' shared experience (and ideally a dermatologist) before layering this in, since the combination is repeatedly flagged as too aggressive. Patch-testing on a small area first, rather than applying to the full face immediately, comes up often enough in cautionary reviews that it's worth treating as a real recommendation rather than generic packaging language. Finally, if you're drawn in specifically by social media content showing dramatic results, check whether that content also shows use of medicube's companion Booster-H device, since reviewers note the serum alone tends to produce milder results than what's often shown alongside the device.
Quick answers to common questions
How often should you use it? Reviewers generally describe a 2-3 times per week routine as the common starting point, rather than daily use, especially for anyone new to spicule-based products.
Can you use makeup or SPF right after? Reviewers recommend waiting until any tingling or redness settles (often 10-20 minutes) and following with a normal moisturizer and SPF routine, rather than applying products immediately after use.
Is it worth the price?
Amazon prices shift regularly, so check the live price on the button below rather than relying on a fixed number here. Reviewers generally felt the results justified the cost for the 7,500 PPM version specifically, though a couple flagged the fluid volume as small for what you're paying.
Our take, based on the roundup
The consistent thread across reviews is that this genuinely feels like an active treatment rather than a soothing serum — the tingling isn't just marketing language, and reviewers who liked it liked it because of that intensity, not despite it. If you're new to spicule/microneedling-style skincare, starting mild and patch-testing first is the advice that comes up again and again. Buyers who respect that guidance rather than jumping straight to the strongest version seem to have the best experience with it.
Keeping this review current
Skincare formulas and strength options get refreshed and re-marketed fairly often, so we revisit roundups like this one periodically rather than treating them as a one-time snapshot. If medicube changes this serum's formula, PPM strength options, or companion device recommendations in a way that changes the picture reviewers describe here, we'll update this page rather than leave outdated claims up. The score and verdict reflect the pattern across reviews at the time of writing — check the live listing for the exact current version before buying.
Sources referenced for this roundup
- TODAY.com — hands-on review comparing results to professional microneedling
- EmpowerYourFame — 2,000 vs. 7,500 PPM comparison and sensitivity guidance
- medicube's published consumer test data — brand-sourced clinical/self-test figures