Susan Merenstein, Pharmacist/Owner

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$15.00

Trial Size L-Retinol Night Serum

 “I am such a fan of your products!"

- K.

L-Retinol – A Gentle Yet Effective Anti-Aging Powerhouse

  • A vitamin A derivative that promotes collagen production & skin renewal.
  • Less irritating than prescription Retinoic Acid but still provides long-term results.
  • Helps with fine lines, acne, hyperpigmentation, and skin texture.
  • Works best at night, after applying Hyaluronic Acid and should always be paired with SPF during  the day.

 

L-Retinol v Retinoic Acid

            L-Retinol (Retinol, Vitamin A Derivative)

Over-the-Counter (OTC) Vitamin A Form

  • Weaker than Retinoic Acid – Needs to be converted by the skin into retinoic acid to be active.
  • Milder, Slower Results – Takes weeks to months for visible anti-aging and acne benefits.
  •  Less irritation compared to prescription retinoids.
  •  Commonly found in serums, creams, and night treatments.

 

 Potential Side Effects:

  • Can cause mild irritation, dryness, or peeling when first introduced.
  • Should still be used at night with SPF during the day.

 

Best For:

  • Beginners
  • Sensitive skin
  • Long-term anti-aging and collagen support

 

            Retinoic Acid (Tretinoin, Prescription-Only)

                        Active Form of Vitamin A

  • No conversion needed – works directly on skin receptors.
  • Faster, more potent results for wrinkles, acne, and hyperpigmentation. 
  • Stronger exfoliation and cell turnover than retinol.

 

                     Higher Risk of Irritation

  • More drying, peeling, and redness, especially in the first few weeks. 
  • Requires gradual introduction to avoid irritation.
  • Should always be used with moisturizer and SPF.

Feature

L-Retinol (OTC)

Retinoic Acid (Rx)

Strength

Weaker, requires conversion

Stronger, works immediately

Speed of Results

Slower (months)

Faster (weeks)

Irritation

Mild to moderate

Higher risk of dryness, peeling

Availability

Over-the-counter

Prescription only

Best For

Beginners, sensitive skin

Acne, advanced aging

 

Final Verdict:

  • L-Retinol = Milder, OTC, good for beginners.
  • Retinoic Acid = Stronger, prescription-only, faster results.

Ingredients: Hamamelis extract, Vitamin A (L-retinol), phenyl butyl nitrone, beta glucan, beta glucosamine, amino guanidine, ethyl hydroxide.

Trial size