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Shop Peter Thomas Roth Camu Camu Power Cx30 Vitamin C Brightening Moisturizer
Moisturizer
Peter Thomas Roth

Camu Camu Power Cx30 Vitamin C Brightening Moisturizer

~$43· 1.7 Fl Oz (Pack of 1)

What it's good for

Key actives from our research database. Click any to read the full evidence dossier.

  • ArgirelineModerate evidenceFull dossier ↗

    Sometimes called "topical Botox," it's a peptide that subtly reduces the depth of expression lines around the eyes and forehead when used daily over months. Mild effect, but real.

    Good for: Anti-aging

  • BisabololModerate evidenceFull dossier ↗

    The "calm-down" molecule in many sensitive-skin formulas. Reduces redness and stinging without bleaching your barrier, and plays nicely on top of retinoids or exfoliating acids.

    Good for: Anti-inflammatory

  • Centella AsiaticaModerate evidenceFull dossier ↗

    Also called "cica," it calms redness, repairs the skin barrier, and speeds up recovery. The go-to for irritated or reactive skin.

    Good for: Anti-inflammatory, Barrier repair

  • DimethiconeStrong evidenceFull dossier ↗

    A silicone that sits on your skin as an invisible, non-greasy shield. Reduces water loss, protects against irritants (think soap, friction, incontinence), and is FDA-recognised as a skin protectant from 1-30%. The reason your favourite primer feels silky and your barrier cream actually works under makeup.

    Good for: Barrier repair, Hydrating

  • EGCG (Green Tea)Strong evidenceFull dossier ↗

    A polyphenol from green tea that calms UV-triggered redness and reinforces your sunscreen as a second line of antioxidant defense.

    Good for: Antioxidant, Anti-inflammatory, Sun protection

  • GlycerinModerate evidenceFull dossier ↗

    A workhorse hydrator that pulls water into your skin. In nearly every good moisturizer for a reason.

    Good for: Hydrating

  • Hyaluronic AcidStrong evidenceFull dossier ↗

    A pure hydrator that holds water in your skin. Makes skin look plumper and smoother almost immediately.

    Good for: Hydrating

  • Lactic AcidStrong evidenceFull dossier ↗

    A gentler exfoliator that also hydrates as it works. Good entry point if you have sensitive skin and want to try acids.

    Good for: Exfoliating, Hydrating

  • LanolinModerate evidenceFull dossier ↗

    Sheep-derived wax esters that mirror the molecules in your own skin lipids. Deeply conditions and softens dry, chapped skin like rough hands and damaged lips, with multiple positive RCTs behind it. Note: classic but real allergen, so patch-test if you have a wool/Balsam-of-Peru history.

    Good for: Barrier repair, Hydrating

  • Linoleic AcidModerate evidenceFull dossier ↗

    An essential fatty acid your sebum runs short on if you're acne-prone, and topping it up topically literally shrinks clogged pores. Also rebuilds the lipid mortar between skin cells. Found concentrated in safflower, hemp, and rosehip oils.

    Good for: Barrier repair, Anti-acne

  • PanthenolModerate evidenceFull dossier ↗

    Pro-vitamin B5. Deeply hydrates and helps repair the skin barrier, calming dry or compromised skin.

    Good for: Hydrating, Barrier repair

  • Sodium PCAAnecdotal evidenceFull dossier ↗

    Replenishes one of the actual humectant molecules your own skin makes. Levels drop in eczema and with age, so topping it up genuinely helps dry, dehydrated, or atopic-prone skin feel less tight.

    Good for: Hydrating, Barrier repair

  • Tartaric AcidAnecdotal evidenceFull dossier ↗

    A gentler grape-derived AHA that exfoliates and helps multi-acid formulas stay at the right pH to work. Less studied than glycolic or lactic acid as a standalone, but well-tolerated in combination peels, and the antioxidant side effect is a genuine bonus.

    Good for: Exfoliating, Antioxidant

New to this? Patch test on your inner arm for 24 to 48 hours before applying to your face. If you have sensitive skin or rosacea, start 2 to 3 times per week and build up slowly.

Evidence behind the ingredients

Real citations from our research database, one per tracked active in this product. Click any ingredient name to read its full evidence dossier.

ArgirelineModerate evidence6 citations

Sometimes called "topical Botox," it's a peptide that subtly reduces the depth of expression lines around the eyes and forehead when used daily over months. Mild effect, but real.

Zhu M et al., The effect of a serum containing acetyl hexapeptide-8, dipeptide diaminobutyroyl benzylamide diacetate and gluconolactone on skin biomarkers, wrinkles and skin texture: ex vivo and clinical studies, International Journal of Cosmetic Science 2026 — two clinical trials (n=50, n=42) showed 35-69% static wrinkle improvement and significant elastic fiber and collagen biomarker increases at 12 weeks

2026Positive (efficacy)PMID:41668671View source ↗

Zdrada-Nowak J, Surgiel-Gemza A, Szatkowska M, Acetyl Hexapeptide-8 in Cosmeceuticals: A Review of Skin Permeability and Efficacy, International Journal of Molecular Sciences 2025

2025InconclusivePMID:40565185View source ↗

Henseler H, Investigating the effects of Argireline in a skin serum containing hyaluronic acids on skin surface wrinkles using the Visia Complexion Analysis camera system, GMS Interdisciplinary Plastic and Reconstructive Surgery DGPW 2023;12:Doc09 — topical argireline serum reduced measured surface wrinkles

2023Positive (efficacy)PMID:38024099View source ↗
BisabololModerate evidence6 citations

The "calm-down" molecule in many sensitive-skin formulas. Reduces redness and stinging without bleaching your barrier, and plays nicely on top of retinoids or exfoliating acids.

Wu Y et al., Exploring the mechanism of alpha-Bisabolol in the treatment of psoriasis based on network pharmacology and experimental validation, European Journal of Pharmacology 2025 — alpha-bisabolol suppressed inflammation in TNF-alpha-treated keratinocytes and psoriasis mice via PI3K/AKT and NF-kB pathways; reduced IL-6, IL-1beta, TNF-alpha and skin lesions

2025Mechanism onlyPMID:40089261View source ↗

Karami H et al. (Brazil), Development of a hydrogel containing bisabolol-loaded nanocapsules for the treatment of atopic dermatitis in a Balb/c mice model, International Journal of Pharmaceutics 2024

2024Positive (efficacy)PMID:38527566View source ↗

Tan C et al. (Brazil), The combination of allantoin, bisabolol, D-panthenol and dipotassium glycyrrhizinate mitigates UVB-induced PGE2 synthesis by keratinocytes, International Journal of Cosmetic Science 2024

2024Mechanism onlyPMID:38433250View source ↗
Centella AsiaticaModerate evidence6 citations

Also called "cica," it calms redness, repairs the skin barrier, and speeds up recovery. The go-to for irritated or reactive skin.

Hur N et al., A Randomized, Double-Blind, Placebo-Controlled Trial Assessing the Effects of Oral Centella asiatica Extract on Skin Aging-Related Parameters in Middle-Aged Korean Women, Nutrients 2026

2026Positive (efficacy)PMID:42196964View source ↗

Borowicz KK et al., Geroprotective Potential of Centella asiatica: Modulation of Cellular Aging, Nutrients 2026

2026Mechanism onlyPMID:42280293View source ↗

Witkowska K et al., Topical Application of Centella asiatica in Wound Healing: Recent Insights into Mechanisms and Clinical Efficacy, Pharmaceutics 2024;16(10):1252 — modern hydrogel and nanostructured Centella delivery systems accelerate wound healing across wound types

2024Meta-analysis (positive)PMID:39458583View source ↗
+10 more ingredients
DimethiconeStrong evidence5 citations

A silicone that sits on your skin as an invisible, non-greasy shield. Reduces water loss, protects against irritants (think soap, friction, incontinence), and is FDA-recognised as a skin protectant from 1-30%. The reason your favourite primer feels silky and your barrier cream actually works under makeup.

Beeckman D, Verhaeghe S, Defloor T, et al. A 3-in-1 perineal care washcloth impregnated with dimethicone 3% versus water and pH neutral soap to prevent and treat incontinence-associated dermatitis: a randomized, controlled clinical trial. J Wound Ostomy Continence Nurs. 2011;38(6):627-634.

2011Positive (efficacy)PMID:21952346View source ↗

Saary J, Qureshi R, Palda V, et al. A systematic review of contact dermatitis treatment and prevention. J Am Acad Dermatol. 2005;53(5):845-855. (Barrier creams containing dimethicone prevent irritant contact dermatitis.)

2005Meta-analysis (positive)PMID:16243136View source ↗

FDA OTC Final Monograph, 21 CFR Part 347 — Skin Protectant Drug Products for Over-the-Counter Human Use; dimethicone listed at section 347.10 as a Category I active ingredient at 1-30%.

2003Regulatory approval21CFR347.10View source ↗
EGCG (Green Tea)Strong evidence7 citations

A polyphenol from green tea that calms UV-triggered redness and reinforces your sunscreen as a second line of antioxidant defense.

Detudom P, Kamanamool N, Paichitrojjana A, Udompataikul P, Udompataikul M, Efficacy of anti-sebum moisturizing cream containing 2% l-carnitine and 5% epigallocatechin gallate in seborrhea, Journal of Cosmetic Dermatology 2023;22(11):3058-3064 — Thai RCT showed EGCG-containing cream significantly reduced sebum and improved hydration in seborrhea

2023Positive (efficacy)PMID:37194909View source ↗

Ud-Din S et al., A Double-Blind, Randomized Trial Shows the Role of Zonal Priming and Direct Topical Application of Epigallocatechin-3-Gallate in the Modulation of Cutaneous Scarring in Human Skin, Journal of Investigative Dermatology 2019;139(8):1680-1690 — topical EGCG reduced scar thickness weeks 1-3 and increased elasticity at week 4 vs placebo

2019Positive (efficacy)PMID:30822414View source ↗

Kim YR et al., Clinical Evaluation of a New-Formula Shampoo for Scalp Seborrheic Dermatitis Containing Rosa centifolia + EGCG: A Randomized Double-Blind Controlled Study, Annals of Dermatology 2014;26(6):733-8 — EGCG-containing shampoo matched ketoconazole and zinc pyrithione efficacy; faster erythema response than 1% zinc pyrithione

2014Positive (efficacy)PMID:25473226View source ↗
GlycerinModerate evidence6 citations

A workhorse hydrator that pulls water into your skin. In nearly every good moisturizer for a reason.

Danby SG et al., Different types of emollient cream exhibit diverse physiological effects on the skin barrier in adults with atopic dermatitis, Clinical and Experimental Dermatology 2022;47(6):1154-1164 — glycerol+urea emollient delivered superior barrier-strengthening and irritant protection

2022Positive (efficacy)PMID:35167133View source ↗

Youssef R et al., Glycerol 85% efficacy on atopic skin and its microbiome: a randomized controlled trial, Journal of Dermatological Treatment 2021;32(7):730-736 — topical glycerol 85% RCT on atopic skin

2021Positive (efficacy)PMID:31869257View source ↗

Evans NJ et al., Human axillary skin condition is improved following incorporation of glycerol into the stratum corneum from an antiperspirant formulation, Archives of Dermatological Research 2017;309(9):739-748 — 4% glycerol penetrated axillary SC, reduced irritation, improved hydration

2017Positive (efficacy)PMID:28889318View source ↗
Hyaluronic AcidStrong evidence7 citations

A pure hydrator that holds water in your skin. Makes skin look plumper and smoother almost immediately.

Karabat MU, Tuncer MC. Effects of hyaluronic acid on skin at the cellular level: a systematic review. Rev Assoc Med Bras. 2025;71(8):e20250208. — Systematic review of 45 studies found low-molecular-weight HA stimulates keratinocyte proliferation and migration while high-molecular-weight HA drives skin hydration, supporting topical HA as an effective skin-hydrating and barrier-supporting ingredient.

2025Meta-analysis (positive)PMID:40990743View source ↗

Bravo B et al., Benefits of topical hyaluronic acid for skin quality and signs of skin aging: From literature review to clinical evidence, Dermatology and Therapy 2022;12(12):2657-2680 — HA-based cosmeceuticals reliably improve hydration and signs of skin aging

2022Meta-analysis (positive)PMID:36200921View source ↗

Lee SG et al., Hyaluronan Oligosaccharides Improve Rosacea-Like Phenotype through Anti-Inflammatory and Epidermal Barrier-Improving Effects, Annals of Dermatology 2020

2020Mechanism onlyPMID:33911737View source ↗
Lactic AcidStrong evidence5 citations

A gentler exfoliator that also hydrates as it works. Good entry point if you have sensitive skin and want to try acids.

Fanning N et al., Treatment of mild-to-moderate facial cutaneous aging using a combination peel containing 6% trichloroacetic acid and 12% lactic acid, Journal of Cosmetic Dermatology 2023;22(11):3033-3041 — three monthly peels significantly improved clarity, pigmentation, fine lines, roughness in 32 subjects

2023Positive (efficacy)PMID:37227430View source ↗

Tang SC, Yang JH, Dual effects of alpha-hydroxy acids on the skin, Molecules 2018;23(4):863 — effect concentration-dependent

2018Positive (efficacy)PMID:29642579View source ↗

Babilas P et al., Cosmetic and dermatologic use of alpha hydroxy acids, JDDG: Journal der Deutschen Dermatologischen Gesellschaft 2012 — supports AHAs including lactic acid for photoaging, pigmentation, and barrier effects

2012Meta-analysis (positive)PMID:22916351View source ↗
LanolinModerate evidence5 citations

Sheep-derived wax esters that mirror the molecules in your own skin lipids. Deeply conditions and softens dry, chapped skin like rough hands and damaged lips, with multiple positive RCTs behind it. Note: classic but real allergen, so patch-test if you have a wool/Balsam-of-Peru history.

CIR Expert Panel. Amended Safety Assessment of Lanolin and Lanolin-Derived Ingredients as Used in Cosmetics. Cosmetic Ingredient Review Final Report. (Original 1980; reaffirmed 2005; updated 2024).

2024Safety assessmentCIR-Lanolin-2024View source ↗

Peric O, Pavicic Bosnjak A, Mabic M, Tomic V. Comparison of Lanolin and Human Milk Treatment of Painful and Damaged Nipples: A Randomized Control Trial. J Hum Lact. 2023;39(2):310-319.

2023Positive (efficacy)PMID:36401521View source ↗

Vieira F, Mota DDCF, Castral TC, Guimaraes JV, Salge AKM, Bachion MM. Effects of Anhydrous Lanolin versus Breast Milk Combined with a Breast Shell for the Treatment of Nipple Trauma and Pain During Breastfeeding: A Randomized Clinical Trial. J Midwifery Womens Health. 2017;62(5):572-579.

2017Positive (efficacy)PMID:28887855View source ↗
Linoleic AcidModerate evidence4 citations

An essential fatty acid your sebum runs short on if you're acne-prone, and topping it up topically literally shrinks clogged pores. Also rebuilds the lipid mortar between skin cells. Found concentrated in safflower, hemp, and rosehip oils.

Lin TK, Zhong L, Santiago JL. Anti-Inflammatory and Skin Barrier Repair Effects of Topical Application of Some Plant Oils. Int J Mol Sci. 2017;19(1):70. — reviews linoleic-acid-rich oils in barrier repair.

2017Meta-analysis (positive)PMID:29280987View source ↗

Liu M et al., Topical application of a linoleic acid-ceramide containing moisturizer exhibit therapeutic and preventive benefits for psoriasis vulgaris: a randomized controlled trial, Dermatol Ther 2015;28(6):373-82 — RCT linoleic-acid/ceramide cream improved barrier

2015Positive (efficacy)PMID:26286610View source ↗

Letawe C, Boone M, Pierard GE. Digital image analysis of the effect of topically applied linoleic acid on acne microcomedones. Clin Exp Dermatol. 1998;23(2):56-58.

1998Positive (efficacy)PMID:9692305View source ↗
PanthenolModerate evidence5 citations

Pro-vitamin B5. Deeply hydrates and helps repair the skin barrier, calming dry or compromised skin.

Gao Y et al., Evaluation of the Efficacy and Safety of a Panthenol-Enriched Mask for Skin Barrier Recovery After Facial Laser Treatment, Journal of Cosmetic Dermatology 2025;24(7):e70223 — double-blind RCT (n=60): panthenol mask decreased erythema, enhanced hydration, repaired barrier vs saline

2025Positive (efficacy)PMID:40613435View source ↗

Cho YS et al., Use of Dexpanthenol for Atopic Dermatitis-Benefits and Recommendations Based on Current Evidence, Journal of Clinical Medicine 2022;11(14):3943 — Korean-authored review; dexpanthenol improves barrier and reduces severity in mild-to-moderate AD

2022Meta-analysis (positive)PMID:35887707View source ↗

Heise R et al., Accelerated wound healing with a dexpanthenol-containing ointment after fractional ablative CO2 laser resurfacing of photo-damaged skin in a randomized prospective clinical trial, Cutaneous and Ocular Toxicology 2019;38(3):274-278 — RCT: dexpanthenol significantly faster wound closure vs petroleum jelly post-laser

2019Positive (efficacy)PMID:30897983View source ↗
Sodium PCAAnecdotal evidence4 citations

Replenishes one of the actual humectant molecules your own skin makes. Levels drop in eczema and with age, so topping it up genuinely helps dry, dehydrated, or atopic-prone skin feel less tight.

Novel design of pyrrolidonecarboxylic acid and sodium dilauramidoglutamide lysine complex for targeted drug delivery to human stratum corneum, International Journal of Pharmaceutics 2025

2025Mechanism onlyPMID:40187708View source ↗

Baldwin H, Del Rosso J, Going Beyond Ceramides in Moisturizers: The Role of Natural Moisturizing Factors, Journal of Drugs in Dermatology 2024 — review establishing PCA (pyrrolidone carboxylic acid) as a core skin natural moisturizing factor alongside amino acids, urea, lactate, and electrolytes; essential to barrier function and xerosis treatment

2024Mechanism onlyPMID:38834224View source ↗

Li L et al., Association Between Skin Acid Mantle, Natural Moisturizing Factors, and Antibacterial Activity Against S. aureus in the Stratum Corneum, Clinical Cosmetic and Investigational Dermatology 2023 — PCA and urocanic acid as NMF components contribute to skin antibacterial defense; 1-unit pH drop = 68.1% S. aureus cell death

2023Mechanism onlyPMID:37378303View source ↗
Tartaric AcidAnecdotal evidence2 citations

A gentler grape-derived AHA that exfoliates and helps multi-acid formulas stay at the right pH to work. Less studied than glycolic or lactic acid as a standalone, but well-tolerated in combination peels, and the antioxidant side effect is a genuine bonus.

Tang SC, Yang JH. Dual Effects of Alpha-Hydroxy Acids on the Skin. Molecules. 2018;23(4):863.

2018Mechanism onlyPMC:PMC6017965View source ↗

Berardesca E et al., Alpha hydroxyacids modulate stratum corneum barrier function, Br J Dermatol 1997;137(6):934-8 — controlled: AHAs incl tartaric modulate stratum corneum barrier/TEWL

1997Mechanism onlyPMID:9470910View source ↗

Sources: 10 clinical journals and regulatory databases across the US, EU, Korea, Japan, and China. Every entry points to a specific document. See methodology for the full list and what each outcome label means.

Layering conflicts

Ingredients in this product that can react with common actives. Avoid stacking unless noted.

  • Tretinoin + lactic acid — stack of two active resurfacers, very irritating.

  • Retinolmedium

    Retinol + lactic acid is gentler than glycolic but still alternate nights to be safe.

Similar comparisons

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