111SKIN Celestial Black Diamond Mask

A two-piece luxury sheet mask designed to visibly firm and brighten skin in a single 20-minute pre-event treatment.

Two-piece mask contours the eye and cheek areas.
One 20-minute session per single-use mask.
Five masks per box — about $28 per treatment.

$140.00

On Amazon when we checked (June 16, 2026) — live price may differ.

By Patrick Smith · Updated July 11, 2026 · How we review · We may earn a commission from Amazon links.

Price when checked: $140.00; on Amazon, June 16, 2026
Best for: Best for pre-event prep and special occasions; a poor value proposition as an everyday…
Biggest complaint: The recurring objection is price: at roughly $28 per single-use mask, even fans position it as an occasional…
Sources cited: 1; independent source

Our verdict

Worth it as a pre-event ritual for those who will pay for an immediate, visible glow. Anyone wanting long-term firming from a daily routine should put the money toward retinoids and sunscreen instead.

Reasons to buy

Reviewers report an immediate, visible payoff — brighter, firmer, bouncier-looking skin after a single 20-minute session, with the two-piece design fitting facial contours well.

Reasons to skip

The recurring objection is price: at roughly $28 per single-use mask, even fans position it as an occasional splurge, and the visible effect is temporary.

The 111SKIN Celestial Black Diamond Lifting and Firming Mask is the sheet mask you deploy the night before something that matters, not a Tuesday staple. The box breaks down to roughly $28 per single-use mask, which puts one application at the price of an entire drugstore mask multipack. What that buys, according to editorial testing at PureWow, is a genuinely visible short-term payoff: brighter, bouncier-looking skin after one 20-minute wear, with firmness most noticeable around the cheeks and nasolabial folds. The two-piece design lets the upper and lower sections sit flush against facial contours instead of gaping like one-piece sheets. The practical advice embedded in reviews: time it before an event, because the effect is a temporary boost, not a lasting structural change.

What buyers say

Our summary of recurring themes in customer reviews on the 111SKIN Celestial Black Diamond Mask Amazon listing (read July 2026) — not quotes or endorsements.

Most praised

Reviewers report an immediate, visible payoff — brighter, firmer, bouncier-looking skin after a single 20-minute session, with the two-piece design fitting facial contours well.

Most common complaint

The recurring objection is price: at roughly $28 per single-use mask, even fans position it as an occasional splurge, and the visible effect is temporary.

Worked best for

Best for pre-event prep and special occasions; a poor value proposition as an everyday skincare staple.

Frequently asked questions

How often should you use the Celestial Black Diamond mask?

It is designed as an occasional treatment rather than a daily product. Most users save it for before events, since the visible firming and brightening effect is temporary and each mask is single-use.

How much does each mask cost?

The five-pack works out to roughly $28 per mask at the $140 box price, versus about $28-and-up when masks are bought individually.

When will I see results?

The effect is immediate — reviewers describe visibly brighter, firmer-looking skin right after the 20-minute wear. Plan it hours before an event rather than before bed to get the most from the glow.