Fourth Ray Beauty Rainfall 2% HA Serum dropper bottle standing upright, catching water splashes against a light-blue backdrop, showcasing its hydrating hyaluronic acid formula; ColourPop Face Serum, 0.95 fl oz/28 mL. Clear droplet of Rainfall 2% HA Serum showcases hyaluronic acid benefits - absorbs 1000x its weight in water, attracts and binds moisture, boosts softness, great for all skin types - on a light blue infographic; ColourPop Face Serum. Rainfall 2% HA Serum hydrating dropper bottle by Fourth Ray Beauty sits among dewy mist bottles on a blue-toned banner with water droplet graphics, promoting hyaluronic acid benefits; lightweight, fast-absorbing ColourPop Face Serum for deep hydration. Fourth Ray Beauty Rainfall 2% HA Serum bottle standing in a splash of water, dropper capped, highlighting lightweight, all-day hydration and works-under-makeup claims; ColourPop Face Serum with 2% hyaluronic acid, 0.95 fl oz/28 mL. Fourth Ray Beauty Rainfall 2% HA Serum dropper bottle beaded with condensation, set beside Waterfall gentle tonic, Dew It hydrating mist, and Soak It Up cream with cucumber slices on a misty blue backdrop - hydrating ColourPop Face Serum. Dropper bottle of Fourth Ray Beauty Rainfall 2% HA Face Serum standing upright, 1 fl oz/30 mL, on a light blue backdrop with water-drop graphics and benefit callouts; a hydrating ColourPop Face Serum with hyaluronic acid. Fourth Ray Beauty Remedy 10% Niacinamide Serum bottle, a pale yellow ColourPop Face Serum in a clear glass dropper, displayed as the Refine option beside hydrating, exfoliating, and brightening serums on a peach background.
Fourth Ray Beauty Rainfall 2% HA Serum dropper bottle standing upright, catching water splashes against a light-blue backdrop, showcasing its hydrating hyaluronic acid formula; ColourPop Face Serum, 0.95 fl oz/28 mL.
 Clear droplet of Rainfall 2% HA Serum showcases hyaluronic acid benefits - absorbs 1000x its weight in water, attracts and binds moisture, boosts softness, great for all skin types - on a light blue infographic; ColourPop Face Serum.
 Rainfall 2% HA Serum hydrating dropper bottle by Fourth Ray Beauty sits among dewy mist bottles on a blue-toned banner with water droplet graphics, promoting hyaluronic acid benefits; lightweight, fast-absorbing ColourPop Face Serum for deep hydration.
 Fourth Ray Beauty Rainfall 2% HA Serum bottle standing in a splash of water, dropper capped, highlighting lightweight, all-day hydration and works-under-makeup claims; ColourPop Face Serum with 2% hyaluronic acid, 0.95 fl oz/28 mL.
 Fourth Ray Beauty Rainfall 2% HA Serum dropper bottle beaded with condensation, set beside Waterfall gentle tonic, Dew It hydrating mist, and Soak It Up cream with cucumber slices on a misty blue backdrop - hydrating ColourPop Face Serum.
 Dropper bottle of Fourth Ray Beauty Rainfall 2% HA Face Serum standing upright, 1 fl oz/30 mL, on a light blue backdrop with water-drop graphics and benefit callouts; a hydrating ColourPop Face Serum with hyaluronic acid.
 Fourth Ray Beauty Remedy 10% Niacinamide Serum bottle, a pale yellow ColourPop Face Serum in a clear glass dropper, displayed as the Refine option beside hydrating, exfoliating, and brightening serums on a peach background.
Fourth Ray Beauty Rainfall 2% HA Serum dropper bottle standing upright, catching water splashes against a light-blue backdrop, showcasing its hydrating hyaluronic acid formula; ColourPop Face Serum, 0.95 fl oz/28 mL. Clear droplet of Rainfall 2% HA Serum showcases hyaluronic acid benefits - absorbs 1000x its weight in water, attracts and binds moisture, boosts softness, great for all skin types - on a light blue infographic; ColourPop Face Serum.
 Rainfall 2% HA Serum hydrating dropper bottle by Fourth Ray Beauty sits among dewy mist bottles on a blue-toned banner with water droplet graphics, promoting hyaluronic acid benefits; lightweight, fast-absorbing ColourPop Face Serum for deep hydration.
 Fourth Ray Beauty Rainfall 2% HA Serum bottle standing in a splash of water, dropper capped, highlighting lightweight, all-day hydration and works-under-makeup claims; ColourPop Face Serum with 2% hyaluronic acid, 0.95 fl oz/28 mL.
 Fourth Ray Beauty Rainfall 2% HA Serum dropper bottle beaded with condensation, set beside Waterfall gentle tonic, Dew It hydrating mist, and Soak It Up cream with cucumber slices on a misty blue backdrop - hydrating ColourPop Face Serum.
 Dropper bottle of Fourth Ray Beauty Rainfall 2% HA Face Serum standing upright, 1 fl oz/30 mL, on a light blue backdrop with water-drop graphics and benefit callouts; a hydrating ColourPop Face Serum with hyaluronic acid.
 Fourth Ray Beauty Remedy 10% Niacinamide Serum bottle, a pale yellow ColourPop Face Serum in a clear glass dropper, displayed as the Refine option beside hydrating, exfoliating, and brightening serums on a peach background.

Rainfall 2% HA Serum

Hydrating Face Serum

4.7
Rated 4.7 out of 5 stars
244 Reviews

🌱 Vegan
🐰 Cruelty-free
🥼 Dermatologist tested
💧 Hydrating

review

4.7
Rated 4.7 out of 5 stars
Based on 244 reviews
Write a Review (Opens in a new window)
244 reviews
  • Calcium
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    11/29/25
    Moisturized my skin nicely

    Immediately you'll smell a cucumber earthy smell, works well after a good wash to the face♡

    Was this helpful?
  • Allison E.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    8/18/25
    Rainfall

    Feels great on your face and does a good job moisturizing!

    Was this helpful?
  • Lillian E.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    8/11/25
    I like this serum

    Love the texture and my skin stays hydrated

    Was this helpful?
  • Janaya J.
    Flag of United States
    Verified Buyer
    I do not recommend this product
    Rated 2 out of 5 stars
    6/20/25
    Rainfall + Night Dew is

    Rainfall + Night Dew is such a good night time combo

    Was this helpful?
  • Mariah N.
    Flag of United States
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    6/7/25
    Great!

    This is my favorite serum! I’ll definitely be buying again

    Was this helpful?