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SNP Diamond Brightening Ampoule Mask in a clear stand-up pouch with a white printed label, shown on a light gray studio background.
SNP Diamond Shining Moisture Ampoule Mask

The Diamond Mask

SNP Diamond Shining Moisture Ampoule Mask

Who said diamonds were only for wearing? Developed in SNP’s Hyper Active Lab, this glow icon pairs finely milled diamond with niacinamide to bring light back to dull skin and help even out tone. Hyaluronic acid adds deep hydration, plumping the look of dryness and fine lines. With over 490 million masks sold, it’s a radiance classic for a reason.

Radiance · Hydrating · Softening · Glow

Delivered Saturday, October 24 with Royal Mail Tracked 48

* 96% accuracy based on an analysis of our last 15,000 orders

WHY WE PICKED IT

Over 490 million masks sold is hard to ignore, but popularity alone doesn’t get a mask into our edit. We wanted to know what sits behind the sparkle.

The diamond powder is the headline, but much of the real work comes from niacinamide, which sits high on the ingredient list, helping even out tone and boost glow. Hyaluronic acid adds deep hydration, so skin looks both brighter and plumper.
Key Benefits

• Radiance: Finely milled diamond adds a luminous glow.
• Even tone: Niacinamide helps brighten and even out skin tone.
• Deep hydration: Hyaluronic acid replenishes moisture.
• Plumper skin: Softens the look of dryness and fine lines.
Best for

Dull, tired or uneven-looking skin that needs a quick radiance boost.
When we’d use it

Before a night out. Make it part of a routine that feels good, not another step you have to do.
What caught our attention

The niacinamide. It’s the third ingredient in the formula, so it’s there in a meaningful amount, doing the brightening work while the finely milled diamond adds a luminous finish.
What we love about the brand

SNP develops its formulas in its own Hyper Active Lab, and this mask has become one of Korea’s most recognisable glow icons. It’s a brand that makes skincare feel fun without losing substance.
The Sonagi Verdict

A considered choice for skin that looks tired. The appeal is simple: hydrate and revive the look of dull skin, without the exaggerated promises.
How to Use

• Prep: Cleanse your face and apply toner if you like.
• Apply: Unfold the mask and smooth it over your face, avoiding the eyes and lips.
• Let it work: Leave it on for the time on the pack, usually 15–20 minutes.
• Finish: Peel it off and pat the remaining essence into your skin. No rinsing needed.
• Sonagi tip: Don’t waste the extra essence in the pouch. Smooth it over your neck.
Ingredients

Water, Glycerin, Niacinamide, Sodium Hyaluronate, Butylene Glycol, Hydroxyethylcellulose, Polysorbate 80, Diamond Powder, Prunus Serotina (Wild Cherry) Fruit Extract, Punica Granatum Fruit Extract, Vaccinium Macrocarpon (Cranberry) Fruit Extract, Carbomer, Arginine, Disodium EDTA, Caprylyl Glycol, Chlorphenesin, 1,2-Hexanediol, Ethylhexyl-glycerin, Fragrance

Who said diamonds are only for wearing? Now it’s time to let your skin shine like a jewel. Developed by SNP’s exclusive Hyper Active Lab, this formula combines finely milled diamond with niacinamide for a brightening synergy: diamond helps bring back the light, while niacinamide works to even out skin tone and enhance a refined, lit-from-within glow. Hyaluronic acid delivers deep, concentrated hydration, plumping the look of fine lines and dryness.

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FAQs

What is the SNP Diamond Shining Moisture Ampoule Mask?

The SNP Diamond Shining Moisture Ampoule Mask is a Korean brightening and hydrating sheet mask designed for dull, tired and uneven-looking skin. Available at SONAGI, it combines finely milled Diamond Powder, Niacinamide and Sodium Hyaluronate. The formula helps improve the appearance of uneven skin tone while delivering moisture, leaving skin looking plumper, smoother and more radiant.

How does the SNP Diamond Shining Moisture Ampoule Mask work?

The SNP Diamond Shining Moisture Ampoule Mask combines brightening and moisturising ingredients in an essence-soaked sheet. Niacinamide helps improve the appearance of uneven skin tone, while Sodium Hyaluronate supports hydration and a plumper-looking complexion. Finely milled Diamond Powder is highlighted for its luminous finish. SONAGI recommends the mask for skin that looks tired or needs a quick radiance boost.

How do I use the SNP Diamond Shining Moisture Ampoule Mask?

Cleanse your face and apply toner if desired before using the SNP Diamond Shining Moisture Ampoule Mask. Unfold the sheet and smooth it evenly over your face, avoiding the eyes and lips. Leave the mask on for the time stated on the packaging, usually 15–20 minutes. Remove it and gently pat the remaining essence into your skin without rinsing. Extra essence can also be applied to your neck.

How long should I leave a diamond ampoule sheet mask on?

The SNP Diamond Shining Moisture Ampoule Mask should be worn for the time indicated on its packaging, usually 15–20 minutes. During application, the sheet delivers a moisturising essence containing Niacinamide, Sodium Hyaluronate and Diamond Powder. After removing the mask, gently pat the remaining essence into your skin. SONAGI does not provide instructions for overnight wear or extended application.

Is the SNP Diamond Shining Moisture Ampoule Mask good for dull skin?

Yes, the SNP Diamond Shining Moisture Ampoule Mask is specifically recommended for dull, tired and uneven-looking skin. Its formula contains Niacinamide to support a brighter, more even-looking complexion, alongside Sodium Hyaluronate for hydration. SONAGI highlights the mask as a quick radiance-focused skincare treatment, particularly before a night out or when skin needs refreshing.

Can a diamond sheet mask help with uneven skin tone?

The SNP Diamond Shining Moisture Ampoule Mask is designed to improve the appearance of uneven skin tone. Its formula contains Niacinamide, which SONAGI highlights as a key brightening ingredient, alongside finely milled Diamond Powder for a luminous finish. Sodium Hyaluronate provides additional hydration. The mask focuses on cosmetic improvements in radiance and skin appearance rather than permanent pigmentation removal.

What ingredients are in the SNP Diamond Shining Moisture Ampoule Mask?

The SNP Diamond Shining Moisture Ampoule Mask contains Diamond Powder, Niacinamide, Sodium Hyaluronate, Glycerin and Butylene Glycol. Its published ingredient list also includes Wild Cherry Fruit Extract, Pomegranate Fruit Extract and Cranberry Fruit Extract. SONAGI highlights the combination of diamond powder, niacinamide and hyaluronic acid for radiance, improved-looking skin tone and hydration.

What does diamond powder do in the SNP Diamond Shining Moisture Ampoule Mask?

Diamond Powder is a featured ingredient in the SNP Diamond Shining Moisture Ampoule Mask. SONAGI describes the finely milled diamond as contributing to a luminous, radiant-looking finish. It is combined with Niacinamide, which helps improve the appearance of uneven skin tone, and Sodium Hyaluronate, which supports hydration. The formula is designed to leave dull-looking skin appearing refreshed and glowing.

What does niacinamide do in a diamond brightening sheet mask?

Niacinamide in the SNP Diamond Shining Moisture Ampoule Mask helps improve the appearance of dullness and uneven skin tone. It appears as the third ingredient in the published formula, after Water and Glycerin. SONAGI highlights Niacinamide as an important component of the mask's brightening benefits, working alongside Diamond Powder and Sodium Hyaluronate to support a more radiant, hydrated-looking complexion.

Is the SNP Diamond Shining Moisture Ampoule Mask good for dry skin?

The SNP Diamond Shining Moisture Ampoule Mask contains moisturising ingredients including Glycerin, Sodium Hyaluronate and Butylene Glycol. These help provide hydration and soften the appearance of dryness, leaving skin looking smoother and plumper. Although SONAGI primarily recommends the mask for dull or uneven-looking skin, its moisture-focused formula may also appeal to people experiencing dryness or dehydration.

Can I use the SNP Diamond Shining Moisture Ampoule Mask before makeup?

The SNP Diamond Shining Moisture Ampoule Mask is recommended by SONAGI as a skincare treatment before a night out. Its formula combines Sodium Hyaluronate for hydration with Niacinamide and Diamond Powder for a more radiant-looking complexion. Apply it for the recommended 15–20 minutes, remove the sheet and pat in the remaining essence before continuing with your skincare or makeup routine.

Where can I buy the SNP Diamond Shining Moisture Ampoule Mask in the UK?

The SNP Diamond Shining Moisture Ampoule Mask is available from SONAGI, a UK-based Korean skincare retailer, for £2.75. It features Diamond Powder, Niacinamide and Sodium Hyaluronate in a brightening and hydrating sheet mask. Designed for dull, tired or uneven-looking skin, it offers a quick skincare treatment focused on moisture, softness and a luminous-looking complexion.

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