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JAYJUN Intensive Brightening Sleeping Pack

Ingredients and claims, checked

Product photo of JAYJUN Intensive Brightening Sleeping Pack

Last checked September 13, 2026

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What is it like at a glance?

What the ingredients do

Hydration leads, with 5 of 46 ingredients. It also contains Adenosine.

Hydration
5
Softening
2
Wrinkle improvement
1
Exfoliation
1

By skin type

  • DryUse with care
  • OilyGood fit
  • CombinationNeutral
  • SensitiveUse with care

Piboo’s rating from user reports.

Worth knowing

  • Contains fragrance
  • On pore-clogging lists

Made for

What is this product?

What to expect
This sleeping pack is registered in Korea as a functional cosmetic for wrinkle improvement.
Key ingredients
Adenosine, Ascorbyl Glucoside, Sodium Ascorbyl Phosphate
When
Evening

Who is it for?

Good for

  • Dull, uneven skin tone
  • Dehydrated normal skin

Less suited to

  • Sensitive skin
  • People avoiding fragrance

What's good, and what to watch for?

Good points

  • Registered as a wrinkle-care functional cosmetic

Watch-outs

  • Contains fragrance
  • If you clog easily: Jojoba Esters, Ascorbyl Palmitate

How do you use it?

Where in your routine
Final step at night, over the rest of the routine, left on overnight
Pairs well with
  • A hydrating toner or essence underneath
  • A moisturiser over the top on dry skin
Don't combine with
A retinoid or exfoliating acid in the same session

What is in it?

The full ingredient list as the brand publishes it, in the printed order. Tap a name to read about that ingredient.

This brand publishes its ingredient list in Korean only. Names below are the matching INCI names from the Korean Cosmetic Association ingredient dictionary, except 6 with no dictionary entry, left in Korean.

Key ingredientWorth a closer look

Ingredients with no mark are ones we found nothing notable about, and when marks overlap on one ingredient we show the caution first.

What the claims add up to

You can expect:
softer-looking fine lines
Only partly backed:
firmer skin
Tests passed:
hypoallergenic · skin irritation
See each claim, checked (12)

Claims, checked

  • Skin low-irritation test completedbacked by evidence
  • Wrinkle improvement functional certificationbacked by evidence
  • * The amount of capsules in the product may vary from product to product.backed by evidence
  • Can be used as a moisturizer as well.plausible, not tested
  • 10 Vitamins · 9 Flower Ingredients · Adenosinepartly backed
  • Helps with skin antioxidant effectpartly backed
  • Improves elasticity with just one usepartly backed
  • Improves inner glow with just one usepartly backed
  • As a result, the 'Jayjun Intensive Brightening Sleeping Pack' commissioned by 'Jayjun Cosmetics Co., Ltd.' showed antioxidant activity (%) and is judged to help with skin antioxidant effect.partly backed
  • 100% satisfactionoverstated
  • With just one use, makeup-ready skin OK!nothing specific to check
  • A sleeping pack that adds moisture and vitality to the skin while you sleep, helping to achieve moist and radiant skin.nothing specific to check

We quote each claim exactly as the brand published it, then check it against the ingredient list and the brand's own documents.

How we check claims

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