Diapia Pieces

The DIAPIA Pieces collection includes: the NALBA Rice Whitening Mask (10 pieces), the Glow Dicica Wrapping Mask (4 pieces), the HA Aqua Shining Mask (5 pieces), and the NNALBA Green Tea Soothing Mask (10 pieces). Each set targets a distinct skin care concern, making it easy to rotate between masks based on your skin's current needs or to build a specific focused routine.

The NALBA and NNALBA names reference specific ingredient concepts within the DIAPIA brand, with NALBA centering on rice-derived brightening ingredients and NNALBA emphasizing green tea and soothing plant extracts. Glow Dicica and HA Aqua target glow and deep hydration respectively.

Rice water and rice extract have been used in Korean and Japanese beauty traditions for centuries as brightening and smoothing ingredients. Rice contains ferulic acid, vitamin B components, and trace minerals that help even skin tone and improve texture. The NALBA Rice Whitening Mask packages these ingredients in a sheet mask format for consistent delivery to the skin during the mask soak period.

At 10 pieces per box, this mask is designed for twice-weekly use over about five weeks, or weekly use over ten weeks. Consistent use shows progressive brightening results rather than dramatic immediate whitening, which makes it better suited as a routine treatment than a quick-fix occasion mask. The box format keeps each individual mask sealed and fresh until use.

Green tea (camellia sinensis extract) contains EGCG and other polyphenols with antioxidant and anti-inflammatory properties. The NNALBA Green Tea Soothing Mask delivers these in a sheet mask format designed for skin that feels reactive, heated, or irritated. This makes it particularly effective after sun exposure, after active ingredient treatments like retinoids or acids, or during periods of seasonal dryness when skin is more reactive than usual.

The 10-piece count matches the NALBA Rice Whitening Mask, allowing the two to be used on alternating nights or in alternating weeks for a brightening-plus-calming dual routine. Green tea masks also work as a standalone once-weekly calming treatment for consistently sensitive or reactive skin types.

HA (hyaluronic acid) is a humectant that holds many times its weight in water and is a standard inclusion in Korean hydrating formulas. The HA Aqua Shining Mask delivers a concentrated dose of hyaluronic acid through extended skin contact, allowing the ingredient to draw and hold moisture in the skin's upper layers. The "Shining" in the name refers to the glow that well-hydrated skin typically shows compared to dehydrated skin.

The 5-piece count makes this a smaller set suited for once-weekly deep hydration sessions. It is particularly effective before important events when maximized skin hydration and radiance are desired, or as a weekly hydration boost during winter months when environmental dryness consistently pulls moisture from skin.

The Glow Dicica Wrapping Mask uses a different format than standard sheet masks. Wrapping masks are typically thicker, stay on longer, and provide a more occlusive environment that helps ingredients penetrate more effectively. The four-piece count positions it as a less frequent but more intensive treatment, suitable for once-a-week or bi-weekly deep treatment sessions.

Dicica refers to the formula's skin care benefit concept within the DIAPIA line, combining glow-targeting ingredients in the wrapping format. The mask is appropriate for skin that needs an intensive boost in radiance or moisture, or as a special pre-event treatment where the extra penetration of a wrapping format can make a more visible difference than a standard sheet mask alone.

The standard sheet mask routine: cleanse and tone skin. Unfold the mask and align with the eyes, nose, and mouth openings. Smooth onto face from center outward, pressing gently to eliminate air gaps. Leave on for 15-20 minutes; check the packaging as some DIAPIA masks may recommend longer. Remove the sheet, then pat remaining serum into skin with fingertips. Do not rinse.

The step in which you skip rinsing is important. The essence left on skin after removing the mask is concentrated and beneficial; rinsing it away wastes much of the treatment's value. Following with a moisturizer or facial oil on top of the essence locks in the hydration delivered during the mask session.

For the 10-piece sets (Rice Whitening, Green Tea): once or twice a week provides good results without over-saturating skin with active ingredients. For the 5-piece HA Aqua: once a week as a deep hydration session, or once every 5 days if your skin is consistently dehydrated. For the 4-piece Glow Dicica Wrapping Mask: once a week as an intensive treatment, or bi-weekly if skin is reacting well to less frequent use.

Sheet masks are generally safe to use daily if your skin tolerates them, but twice-weekly use on alternating days is the most common recommendation for achieving consistent improvements without the risk of over-hydrating or sensitizing skin from daily active ingredient exposure.

Sheet masks replace the serum step in your routine for the evenings when you use them, or they function as an addition to your serum if you want maximum treatment. The standard placement: cleanse, tone (optional), sheet mask for 15-20 minutes, remove and pat in remaining essence, moisturizer, oil (optional). Skip applying serum before the mask; the sheet mask is itself a concentrated serum delivery system.

For the soothing and brightening masks (Green Tea, Rice), using them after any active ingredient treatment (such as vitamin C or niacinamide) allows the mask's calming and conditioning ingredients to buffer any potential irritation from the actives. For HA Aqua, using it as the final serum step before moisturizer maximizes the hydration-sealing effect of the moisturizer on top.

Keep unopened mask pouches in a cool, dry location away from direct sunlight. Refrigerating sheet masks is a popular practice in Korea because the cool temperature provides a soothing sensation on application and may help ingredients stay fresher between uses. Refrigeration is optional for effectiveness but adds a pleasant sensory experience, particularly for the Green Tea Soothing Mask after sun exposure.

Once opened, use a sheet mask immediately. Do not reseal and store a used mask; the remaining essence in the pouch is meant to be applied to hands, neck, or other areas after removing the mask from the face, not saved for a future session.