Modern topical retinoid science began when Dr. James E. Fulton co-developed Retin-A, helping reshape the treatment of acne-prone skin and visible skin aging.


But Dr. Fulton recognized a persistent problem:


Traditional retinoids can work well, yet irritation often prevents long-term success.


So he pursued something better.


The result was Retinyl Propionate—a non-prescription retinoid developed to support many of the visible benefits associated with prescription retinoids, but with improved skin comfort.


Today, that original molecule is known as REt (RP)™ Retinoid.

Why REt (RP)™ Retinoid Is Different

Faster Visible Results Than Traditional Retinol

In controlled evaluations cited in the science paper, Retinyl Propionate delivered visible improvements up to three times faster than traditional retinol, with earlier gains in the look of wrinkles and skin texture.


For consumers, that means less waiting and more visible momentum.

Powerful Results with Improved Tolerability

In comparative studies, Retinyl Propionate regimens achieved:

  • Greater wrinkle reduction at 8 weeks than 0.02% tretinoin
  • Comparable results by 24 weeks
  • Fewer reports of visible irritation such as redness, peeling, and stinging

That’s a major reason REt (RP)™ Retinoid stands apart from harsher traditional retinoids.

Supports More Than Aging Skin

REt (RP)™ Retinoid helps improve the appearance of:

  • Fine lines
  • Rough texture
  • Uneven-looking tone
  • Dullness
  • Congested pores
  • Breakout-prone skin

This makes it ideal for adults navigating both blemishes and visible aging at the same time.

Structure, Absorption, and Performance

Not all retinoids function the same way.

Retinoid performance depends on two critical factors:

1. Molecular Structure

All retinoids must eventually convert within skin into retinoic acid to create visible effects. How efficiently that happens depends on the molecule itself.


REt (RP)™ Retinoid was engineered to participate more effectively in those pathways than larger, more inert retinyl esters.

2. Molecular Size

Larger Vitamin A esters may have greater difficulty moving through the skin barrier.

REt (RP)™ Retinoid was designed to be more bioavailable—helping more of the ingredient become available where it matters.


In Simple Terms:

  • Better-designed molecule
  • Better skin availability
  • Better visible performance

Why It Matters Now

Nearly every skincare brand offers some form of Vitamin A.

Only one brand can trace its retinoid legacy directly to the original clinical work that helped define modern topical retinoids.

That brand is Vivant Skin Care.

With the reintroduction of Retinyl Propionate as REt (RP)™ Retinoid, Vivant reaffirms what has always set the brand apart:

  • Scientific integrity
  • Ingredient precision
  • Clinical performance
  • Results you can stay with

Who Should Use REt (RP)™ Retinoid?

REt (RP)™ Retinoid is ideal for those looking for:

  • A smarter alternative to retinol
  • A retinoid with improved tolerability
  • Faster visible results
  • Support for wrinkles and texture
  • A retinoid for acne-prone or congested skin
  • A more advanced Vitamin A routine

Discover Vivant’s Iconic REt (RP)™ Serums

If you’re ready to move beyond generic retinoids and experience the molecule designed by one of the category’s original innovators, REt (RP)™ Retinoid is where to begin.


Shop Vivant REt (RP)™ Serums and discover visible renewal without the traditional retinoid trade-off.

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