Product

Peach & Lily Retinal For All Renewing Serum

0.1% encapsulated retinaldehyde, honestly labeled — sold on a "20x more effective" claim that no study supports.
At a Glance
Recommended

There is no clinical head-to-head showing retinaldehyde is 20 times, or even twice, as effective as retinol. That number appears to borrow from the separate retinol-versus-tretinoin comparison, which is a different thing.

The real case for retinal is solid without the hype. It is one conversion step closer to retinoic acid than retinol, and a 125-patient, 18-week trial found it comparable to retinoic acid on wrinkles while being much better tolerated.

This is a low 0.1% dose, so it works gently and slowly. Retinal can also leave a faint, harmless orange tint on skin or fabric.

Key facts

Key activeRetinaldehyde 0.1%
TextureMilky serum
Best forBeginners; sensitive skin
Approximate price$50–$55
FragranceFragrance free

How it works

0.1% retinaldehyde, stated plainly. The number is real and refers to the actual molecule.

Retinal is one conversion step closer to retinoic acid than retinol, and the best evidence for it — a 125-patient, 18-week trial — found it comparable to retinoic acid on wrinkles while being far better tolerated.

Cyclodextrin encapsulation protects a molecule that is genuinely fragile.

Fragrance-free, with ceramides and ectoin for support. Gentle, and a reasonable entry point.

Irritation is expected, not a sign it is "working." Redness, flaking and stinging in the first weeks are common with any real retinoid. Start twice a week and build up. If it is still angry after a few weeks, the dose is too high for you.

Everyday habits

How to use it
  • When: Start 2 to 3 nights a week, always at night.How much: Use a pea-sized amount for the whole face. Steps: Apply to clean, dry skin. To reduce irritation, you can buffer by applying moisturizer first, then the product, then more moisturizer. Sunscreen: Wear sunscreen every morning. Retinoids make skin more sensitive to the sun. What to expect: This is a low dose, so early dryness is usually mild. Retinal can also leave a faint, harmless orange tint on skin or fabric. Build up slowly. Careful: Avoid the immediate eye area. Do not layer it with other strong actives at first.
Who should be careful+

"Up to 20x more effective than traditional retinol" is not true, and it is not defensible.

That number is a garbled borrowing of the retinol-versus-tretinoin potency gap — which is a different comparison entirely. There is no clinical head-to-head showing retinaldehyde is 20 times, or even twice, as effective as retinol. We looked for one. It does not exist.

The mechanistic argument for retinal is sound. The multiplier is invented, and a brand that is otherwise honest about its dose should not need it.

The ectoin "82.6%" figure is a lab number, not a clinical outcome.

$55 for 30 ml of 0.1% — a genuinely low dose. Gentle and slow, by design.

Retinal can tint skin and pillowcases faintly orange.

Questions people ask+
Is it really "20x more effective"?No. No study supports that claim.
Is the dose disclosed?Yes, 0.1% retinaldehyde.
Is it fragrance-free?Yes.
Will it tint my skin?It can leave a faint, harmless orange tint.
Is it good for beginners?Yes. It is a low, gentle dose with barrier support.
Full ingredient list+

Water, Caprylic/Capric Triglyceride, Cetearyl Alcohol, Butylene Glycol, Glycerin, Cyclodextrin, Sorbitan Stearate, Cetyl Ethylhexanoate, Daucus Carota Sativa Root Water, Camellia Japonica Flower Extract, Rubus Chamaemorus Seed Oil, Sodium Hyaluronate, Ectoin, Behenic Acid, Eclipta Prostrata Extract, Polyacrylate Crosspolymer-6, Bisabolol, Ceramide NP, Ceramide AP, Phytosphingosine, Cholesterol, Rhynchosia Nulubilis Seed Extract, Retinal, Lonicera Japonica Flower Extract, Dextrin, Polygonum Multiflorum Root Extract, Moringa Oleifera Seed Oil, Ceramide EOP, Polyacrylate-13, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Sesamum Indicum Seed Extract, Melia Azadirachta Leaf Extract, Gardenia Florida Fruit Extract, Lonicera Caprifolium Flower Extract, Hydrogenated Polyisobutene, Methylpropanediol, Potassium Sorbate, Sodium Cetearyl Sulfate, Polyglyceryl-6 Behenate, Glyceryl Caprylate, Hydroxyacetophenone, Phytosteryl/Octyldodecyl Lauroyl Glutamate, Sucrose Cocoate, Polyglyceryl-10 Laurate, Ethylhexyl Palmitate, Sorbitan Isostearate, Polyglyceryl-10 Stearate, Pentylene Glycol, 1,2-Hexanediol, Triethyl Citrate, Tocopherol, Sodium Levulinate, Glyceryl Stearate, Sorbitan Olivate, Ethylhexylglycerin, Cetearyl Olivate, Propanediol

References+

1. Retinal For All Renewing Serum (https://www.peachandlily.com/products/retinal-for-all-renewing-serum) — Manufacturer page confirms the serum contains 0.1% cyclodextrin-encapsulated retinaldehyde and is formulated fragrance-free with ceramides (NP/AP/EOP) and ectoin. 2. Retinaldehyde - Wikipedia (https://en.wikipedia.org/wiki/Retinaldehyde) — Documents the vitamin A metabolic pathway (retinol reversibly oxidizes to retinaldehyde, which is then oxidized to retinoic acid), supporting that retinal is one conversion step closer to retinoic acid than retinol. 3. Topical retinoids (https://dermnetnz.org/topics/topical-retinoids) — DermNet, a reputable clinical dermatology reference, lists retinaldehyde as a topical retinoid and notes topical retinoids commonly cause retinoid dermatitis (erythema, peeling, dry skin), supporting that redness and flaking are expected. 4. Retinoid or retinol? Learn what these terms mean (https://www.aad.org/public/everyday-care/skin-care-secrets/anti-aging/retinoid-retinol) — American Academy of Dermatology guidance that retinoids commonly irritate skin and should be introduced gradually (start with the gentlest formulation, every other night), supporting the advice to start twice a week and build up. 5. Retinol (https://my.clevelandclinic.org/health/treatments/23293-retinol) — Cleveland Clinic notes redness, peeling, flaky/dry skin and burning are common early side effects and that skin may look worse at first, recommending a gradual ramp-up — supporting that first-weeks irritation is expected, not a sign it is 'working.'