If you've ever wanted the results of retinol without building your entire life around avoiding the sun, this is the ingredient you've been waiting for.
RetinART™ is a patent-pending marine bio-retinoid derived from Mediterranean microalgae. It's in Sabbatical Serum because it does what traditional retinol does — improves texture, reduces hyperpigmentation, supports collagen — without the side effects that make retinol incompatible with a life spent outside.
Here's the full picture.
What Retinol Actually Does (and Why It's Complicated)
Retinol is a derivative of vitamin A. It speeds up cell turnover, stimulates collagen production, and over time visibly improves skin texture, tone, and fine lines. The results are real and well-documented.
The problem is how it gets there.
Retinol activates two retinoid receptors in the skin — RAR-alpha and RAR-gamma. Those receptors drive the renewal process, but they also trigger inflammation. That's where the peeling, redness, and dryness come from. And because retinol destabilizes the skin's protective barrier, it makes skin significantly more sensitive to UV exposure. Most dermatologists recommend starting slow, using it only at night, and being diligent about SPF.
For anyone who spends real time outside — traveling, on the water, in the sun — that's a trade-off that doesn't work.
What Makes RetinART™ Different
RetinART™ is derived from Chlorella vulgaris, a Mediterranean microalgae, and powered by marine apocarotenoids — natural compounds that structurally resemble retinoic acid, the active form of vitamin A in skin.
The key difference is receptor selectivity.
RetinART™ targets only the RAR-beta receptor. That's the receptor linked to skin renewal. It bypasses RAR-alpha and RAR-gamma — the receptors that cause peeling, redness, and sun sensitivity. The skin gets the renewal signal without the inflammatory response that comes with it.
It's encapsulated in pharmaceutical-grade liposomes with a patented marine biopolymer coating for stability and penetration — meaning it actually gets where it needs to go, and stays effective once it's there.
No photosensitivity. No recovery phase. No avoiding the sun.
What the Clinical Studies Show
RetinART™ has been studied head-to-head against both retinol and bakuchiol. The results are specific enough to be worth sharing directly.
Texture: 94% of participants saw improvement in skin texture with RetinART™, compared to 76% with retinol.
Pigmentation: RetinART™ achieved a 33% reduction in melanin synthesis — compared to 9% for retinol and 21% for bakuchiol.
Cell renewal: Cell proliferation increased by 38% with RetinART™, compared to 15% with retinol and 3% with bakuchiol.
Collagen: Collagen I synthesis increased by 127% and Collagen III by 176% — both significantly ahead of retinol and bakuchiol benchmarks.
Hyaluronic acid: An 8% increase in hyaluronic acid production, supporting the skin's own moisture retention.
These aren't brand claims. They're published clinical findings from the ingredient's manufacturer, Algaktiv, and have been independently verified in peer-reviewed research.
Why It's in Sabbatical Serum
Our founder, Andi Eaton Alleman, spent a summer on the Mediterranean before she ever knew RetinART™ existed. When she found the ingredient — derived from the same coastline — it made sense immediately.
Casa Noon was built on a specific premise: sun lovers shouldn't have to choose between the life they want and the skin they want. Retinol, as effective as it is, asks you to make that choice. RetinART™ doesn't.
It's one of fewer than a handful of US formulas using this ingredient. We built Sabbatical Serum around it — alongside 76% organic aloe juice and the Casa Complex (sea grape, sea moss, rainbow algae, and adaptogenic botanicals) — because the entire formula is designed to work with time outside, not against it.
One serum. Morning and evening. No sun restrictions.
RetinART™ vs. Retinol vs. Bakuchiol: A Quick Reference
|
Retinol |
Bakuchiol |
RetinART™ |
|
|---|---|---|---|
|
Source |
Vitamin A derivative |
Plant-based |
Mediterranean microalgae |
|
Sun safe |
No |
Yes |
Yes |
|
Irritation risk |
High |
Low |
None |
|
Texture improvement |
76% of users |
Moderate |
94% of users |
|
Melanin reduction |
9% |
21% |
33% |
|
Works AM + PM |
No |
Yes |
Yes |
|
Sensitive skin safe |
No |
Generally yes |
Yes |
RetinART™ is not a compromise. The clinical data puts it ahead of both retinol and bakuchiol across the markers that matter — texture, pigmentation, collagen, cell renewal — without the side effects that make traditional retinol a poor fit for active, sun-exposed skin.
If you've been waiting for a retinoid that actually works with your life, this is it.
Sabbatical Serum contains RetinART™ alongside 76% organic aloe juice and the Casa Complex. Dermatologist-tested. Safe for sensitive skin. TSA-proof.