Hyaluronic Acid Serum
$42.00Lightweight hyaluronic acid and glycerin serum that replenishes moisture for smoother, plumper skin.
Plump & Hydrate
Shipping across the US · Fragrance-free · Serums only
Renewal / Advanced Care
Retinol Serum
Renewal, Deliberately Formulated.
$54.00
A rejuvenating evening serum built around retinol, hydrolyzed collagen, and sodium hyaluronate, formulated to smooth the appearance of fine lines, refine texture, and deliver lasting hydration.
- Supports smoother-looking texture and fine lines
- Combines retinol with collagen and hyaluronic acid
- A lightweight formula with hydrating, skin-conditioning ingredients
What it does
Retinol works alongside hydrolyzed collagen and sodium hyaluronate to support the appearance of smoother, more supple-looking skin. Phospholipids and sodium PCA help support moisture retention, while algae extract and coconut fruit juice add a layer of nourishing hydration. With continued use, skin looks smoother, plumper, and more radiant.
Why you'll love it
- Pairs retinol with collagen and hyaluronic acid in one formula
- Formulated with skin-conditioning and hydrating ingredients alongside the retinol
- A lightweight, fast-absorbing texture
- Nourishing botanical hydration from algae extract and coconut fruit juice
- The most advanced step in the piani. line, for those ready for it
Key ingredients
Retinol
A vitamin A derivative that supports the appearance of texture and fine lines with continued use.
Hydrolyzed Collagen
A conditioning ingredient that supports the look of smoother, more supple skin.
Sodium Hyaluronate
Helps skin attract and retain moisture.
Phospholipids
Skin-conditioning lipids that support moisture retention.
Sodium PCA
A natural moisturizing factor that helps maintain hydration.
Algae Extract & Coconut (Cocos Nucifera) Fruit Juice
Nourishing botanical hydrators.
Texture & use
Texture. A lightweight, fluid serum with a nourishing, fast-absorbing finish.
How to use. Apply 2–3 drops to face and neck in the evening. Massage gently into skin. As retinol is an active ingredient, start with a few evenings a week and build up gradually as your skin adjusts. Follow with a face cream, and always use SPF the following day.
Pairs well with. Hyaluronic Acid Serum or Hydration Serum (added comfort on retinol nights), Niacinamide Vitamin Boost (mornings). Not intended to be layered with Glycolic Acid Serum the same evening — alternate instead.
FAQ
How often should I use Retinol Serum?
Start with a few evenings a week and increase gradually as your skin adjusts. It's formulated for evening use only.
Can I use it with Glycolic Acid Serum?
We recommend alternating evenings rather than layering both active serums together, to keep your routine simple and give your skin time to adjust.
Will it feel drying?
The formula includes phospholipids, sodium hyaluronate, algae extract, and coconut fruit juice to support hydration alongside the retinol.
Do I need SPF the next day?
Yes. Retinol can increase sun sensitivity, so daytime SPF is important.
What does the collagen do in this formula?
Hydrolyzed collagen is included as a conditioning ingredient that supports the look of smoother, more supple skin.
Is this the strongest product in the piani. line?
It's the most advanced formula in the collection, combining retinol with collagen, hyaluronic acid, and nourishing botanicals.
Where is it made?
Made in North America.
Pairs well with
See the routines
Hydration Serum
$44.00Botanical daily serum with Cassia seed extract and glycerin for soft, balanced, comfortable skin.
Comfort & Balance
Niacinamide Vitamin Boost
$48.00Niacinamide and vitamin C serum that targets dullness, uneven tone, and dehydration in one step.
Brighten & Refine