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Peter Thomas Roth FI… vs Sunday Riley A+ High… — Which Is Better? | Gracie

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Peter Thomas Roth FIRMx Collagen Moisturizer vs Sunday Riley A+ High-Dose Retinoid Serum

Peter Thomas Roth FIRMx Collagen Moisturizer scores 8.5/9.8 vs Sunday Riley A+ High-Dose Retinoid Serum at 8.0/9.8. Peter Thomas Roth FIRMx Collagen Moisturizer wins for hydration.

Head to head

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Peter Thomas Roth

FIRMx Collagen Moisturizer

moisturiserpremium

8.5

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Ingredients

Niacinamide
Retinol
Hyaluronic Acid
Salicylic Acid

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Honest skincare intel. No jargon, no gatekeeping — just the ingredients decoded.

Sunday Riley

A+ High-Dose Retinoid Serum

serumpremium

8.0

Score comparison

Peter Thomas Roth FIRMx Collagen Moisturizer edges ahead, winning 2 of 5 attributes.

Peter Thomas Roth wins 2

Tied 2

Sunday Riley wins 1

9.0

Peter Thomas Roth

Sunday Riley

Ingredient face-off

9% overlap

24Peter Thomas Roth

4Shared

44Sunday Riley

Only in Peter Thomas Roth FIRMx Collagen Moisturizer

20 unique

Water/Aqua/Eau Collagen Caprylic/Capric Triglyceride Cetearyl Alcohol Niacinamide Sodium Hyaluronate Palmitoyl Tripeptide-1 Palmitoyl Tetrapeptide-7 Squalane Jojoba Esters+10 more

Shared ingredients

4 in common

Glycerin Dimethicone Phenoxyethanol Caprylyl Glycol

Only in Sunday Riley A+ High-Dose Retinoid Serum

40 unique

Water Propanediol Dimethyl Isosorbide Pentylene Glycol Hexyldecanol Cetyl Peg/Ppg-10/1 Dimethicone Diheptyl Succinate Propylene Carbonate Phenyl Trimethicone Retinol+30 more

Why Peter Thomas Roth FIRMx Collagen Moisturizer comes out ahead

Where Peter Thomas Roth FIRMx Collagen Moisturizer really shines is hydration efficacy, scoring 9.1 compared to Sunday Riley A+ High-Dose Retinoid Serum's 7.5. With Glycerin, Sodium Hyaluronate, and Panthenol in its top ingredients, Peter Thomas Roth FIRMx Collagen Moisturizer delivers stronger moisture-binding capability.

Active Ingredient Strength is another area of separation. Peter Thomas Roth FIRMx Collagen Moisturizer scores 5.9 here versus 5.3 for Sunday Riley A+ High-Dose Retinoid Serum. That difference comes down to how each formula is built — the ingredient list tells the story.

Peter Thomas Roth FIRMx Collagen Moisturizer brings Collagen, Niacinamide, and Palmitoyl Tripeptide-1 as actives, while sunday Riley A+ High-Dose Retinoid Serum relies on Retinol, Ubiquinone, and Honey Extract. Both approaches have merit, but the positioning and supporting ingredients make the difference.

Best for your skin type

Peter Thomas Roth FIRMx Collagen Moisturizer is better if you have

Sensitive skin — the low-irritation formula keeps things gentle
Dry or dehydrated skin that craves moisture, thanks to Glycerin
Anyone who prefers clean, well-vetted formulations

Sunday Riley A+ High-Dose Retinoid Serum is better if you have

Sensitive skin — the low-irritation formula keeps things gentle
Dry or dehydrated skin that craves moisture, thanks to Dimethyl Isosorbide
Anyone who prefers clean, well-vetted formulations

Value comparison

Both sit in the premium bracket, so value comes down to formulation quality. Peter Thomas Roth FIRMx Collagen Moisturizer gets the nod here with its 8.5 overall score — you're getting more for a similar outlay.

Our verdict

✶ Our verdict

+0.5 lead

Peter Thomas Roth FIRMx Collagen Moisturizer edges ahead with a slightly stronger formulation, but Sunday Riley A+ High-Dose Retinoid Serum is still a solid pick.

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8.5Peter Thomas Roth

8.0Sunday Riley

Frequently asked questions

Which is better: Peter Thomas Roth FIRMx Collagen Moisturizer or Sunday Riley A+ High-Dose Retinoid Serum?

Based on ingredient analysis, Peter Thomas Roth FIRMx Collagen Moisturizer scores higher overall. See the full score breakdown above for details on each attribute.

Do Peter Thomas Roth FIRMx Collagen Moisturizer and Sunday Riley A+ High-Dose Retinoid Serum share ingredients?

Yes, they share common ingredients. Check the ingredient face-off section above for a detailed comparison.

What's the main difference between Peter Thomas Roth FIRMx Collagen Moisturizer and Sunday Riley A+ High-Dose Retinoid Serum?

The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.

Full analysis: Peter Thomas Roth FIRMx Collagen Moisturizer→Full analysis: Sunday Riley A+ High-Dose Retinoid Serum→

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