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If you’ve been searching for a blurring primer that actually does what it promises, the ICONIC London Underglow Blurring Primer is worth a serious look. It combines pore-minimizing soft-focus powders with skin-care actives like Vitamin C and Colloidal Gold, landing somewhere between a serum and a traditional silicone primer in a way that feels genuinely different from most drugstore picks.
I recommend this one for anyone who wants a luminous, “candlelit” base without the heavy, cakey feeling that some primers leave behind. The dropper format, clean ingredient list, and trial data backing up its smoothing claims all pointed me toward giving it a real test. Here’s what I found.
What the ICONIC London Underglow Blurring Primer Actually Does
The Underglow Blurring Primer is designed to sit between your moisturizer and foundation, creating a soft-focus canvas that minimizes the look of pores and blurs fine lines. It delivers a demi-matte finish rather than a full matte or a heavy dewy one, which is a thoughtful middle ground. The champagne pearls in the formula give skin a subtle luminosity that reads as a natural, from-within glow rather than obvious shimmer. That distinction matters a lot if you want your skin to look alive without looking glittery.
The dropper applicator delivers 2 to 3 drops per use, which is the recommended amount for full-face coverage. Focusing a bit more product on areas prone to shine, like the T-zone, helps the primer do its best work. You apply it with fingertips or a brush after moisturizing, and it blends into skin quickly without pilling, at least in my experience with similarly formulated products of this type.
Ingredients Worth Paying Attention To
What separates the ICONIC London Underglow Blurring Primer from a basic silicone primer is its ingredient list. A few highlights worth noting:
- Soft Focus Blurring Powders and Silica physically smooth the surface of skin, reducing the appearance of pores and fine lines on contact.
- Vitamin C and Glutathione are antioxidant actives that support radiance over time, a nod toward the skincare-makeup hybrid category this product lives in.
- Artemisia Capillaris is included to help protect against HEV (blue light), which is a more forward-thinking addition you don’t see in every primer.
- Colloidal Gold and Tocopherol (Vitamin E) round out the formula with skin-conditioning properties.
- Dimethicone and Glycerin provide the smooth, slip-like application feel and help keep skin hydrated under makeup.
The formula is free from parabens, phthalates, mineral oil, and sulfates (SLS and SLES), and it contains less than 1% synthetic fragrance. It is also 100% vegan and cruelty-free, which matters to a growing number of buyers in this category.
Who Should Buy the Underglow Blurring Primer
This primer is positioned for all skin types, and the trial data supports that claim reasonably well. In a 2-week user trial with 97 respondents, 95% said it made skin feel silky and smooth, 94% said it gave a soft-focus look, and 91% said it made skin and makeup glow. Those numbers are solid, though it’s worth noting this was a brand-commissioned study.
My read on the best-fit skin types:
- Combination and oily skin will likely appreciate the demi-matte finish and the shine-control focus in the directions. The blurring powders help absorb excess oil without stripping the skin of warmth.
- Dry skin benefits from the Glycerin and Dimethicone base, which keeps the formula from feeling tight. The luminous champagne pearls also prevent that flat, powdery look that matte primers can create on drier complexions.
- Normal skin gets the cleanest result here, with the glow and blur benefits showing up most evenly.
If your main goal is a completely full-coverage, skin-masking base, this is probably not your product. The Underglow Blurring Primer works more as a skin-perfecter than a heavy-duty pore filler. It enhances what’s there rather than replacing it.
How to Use It for Best Results
The application method is simple. After your moisturizer has absorbed (giving it 30 to 60 seconds helps), use the dropper to dispense 2 to 3 drops into your palm or directly onto your face. Work it in with clean fingertips using light pressing and blending motions, or use a flat base brush for more precision. The formula is described as refreshing, and the lightweight texture means it doesn’t feel heavy going on.
Focusing a little extra product on your nose, forehead, or chin, wherever shine or pores are a priority, makes a noticeable difference. Let it settle for about 30 seconds before layering foundation or another base product on top to avoid disturbing the finish.
Trade-Offs to Consider
The bottle holds 0.91 fl oz (27 mL), which is on the smaller side for a primer. If you apply 2 to 3 drops daily, the product will last a reasonable amount of time, but it’s not a bulk-size option. This primer reflects prestige positioning, so it may not be the right pick if you’re shopping strictly on value.
The demi-matte finish is a genuine design choice, not a flaw, but buyers looking for either a fully dewy glow or a flat matte finish should factor that in. The Underglow Blurring Primer sits in between, which most people find flattering, but it’s not a one-size-fits-all finish preference.
👍 Pros
- Soft-focus blurring powders visibly minimize pores and smooth fine lines on contact
- Demi-matte finish with champagne pearls delivers a natural, candlelit glow without looking glittery
- Clean formula: free from parabens, phthalates, mineral oil, and sulfates, with less than 1% synthetic fragrance
- 100% vegan and cruelty-free, backed by a brand-wide commitment
- Skincare-active ingredients (Vitamin C, Colloidal Gold, Artemisia Capillaris) add real value beyond a basic primer
👎 Cons
- At 0.91 fl oz (27 mL), the bottle is smaller than many competitors in the primer category
- The demi-matte finish won’t satisfy buyers who want a fully dewy or fully matte result
- Trial data showing 95% satisfaction comes from a brand-commissioned 97-person study, so independent verification is limited
👉 The ICONIC London Underglow Blurring Primer earns its place in a routine for anyone who wants a luminous, pore-blurring base with a genuinely thoughtful ingredient list behind it.
Frequently asked questions
Is the ICONIC London Underglow Blurring Primer good for oily skin?
Yes, the demi-matte finish and soft-focus blurring powders make it a solid pick for oily skin. The directions specifically suggest focusing the product on areas prone to excess shine, which is practical guidance for oilier skin types. The trial data also showed strong agreement that it works across all skin types.
How many drops of the Underglow Blurring Primer do I need per application?
The brand recommends 2 to 3 drops applied after moisturizing, using the built-in dropper. You can use fingertips or a brush to blend it across the face, concentrating a little more on areas where pores or shine are a concern.
Is the ICONIC London Underglow Blurring Primer vegan and cruelty-free?
Yes, the Underglow Blurring Primer is 100% vegan and cruelty-free, in line with ICONIC London’s brand-wide commitment. The formula is also free from parabens, phthalates, mineral oil, and sulfates.
What finish does the Underglow Blurring Primer give?
It gives a demi-matte finish with a soft, candlelit luminosity from the champagne pearls blended into the formula. It sits between a fully dewy and a flat matte look, which most people find flattering and natural-looking.
Can I use the Underglow Blurring Primer without foundation on top?
The primer is designed as a base step before foundation or other makeup, but its skin-perfecting and radiance-boosting properties mean it could work solo on low-makeup days. Keep in mind it is primarily formulated to prime skin rather than provide coverage on its own.
