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Shop Tirtir Natural Ceramide Cream
Moisturizer
Tirtir

Natural Ceramide Cream

~$25· 50ml
DrynessRedness

What it's good for

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

  • CeramidesStrong evidenceFull dossier ↗

    Refills the natural barrier between your skin cells. Locks moisture in, keeps irritants out, calms dry or damaged skin.

    Good for: Barrier repair

  • Polyglutamic AcidAnecdotal evidenceFull dossier ↗

    A hydrator often pitched as "stronger than hyaluronic acid." It sits on the surface, locks water in, and helps your skin make more of its own moisturizers over time.

    Good for: Hydrating, Barrier repair

  • 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

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.

CeramidesStrong evidence7 citations

Refills the natural barrier between your skin cells. Locks moisture in, keeps irritants out, calms dry or damaged skin.

Andrew PV et al., Topical supplementation with physiological lipids rebalances the stratum corneum ceramide profile and strengthens skin barrier function in adults predisposed to atopic dermatitis, British Journal of Dermatology 2025;193(4):729-740 — physiological-lipid emulsion raised SC ceramide NP/AP and improved barrier function vs control

2025Positive (efficacy)PMID:40408261View source ↗

Nugroho WT, Sawitri, Astindari, Utomo B, Listiawan MY, Ervianti E, Astari L. The Efficacy of Moisturisers Containing Ceramide Compared with Other Moisturisers in the Management of Atopic Dermatitis: A Systematic Literature Review and Meta-Analysis. Indian J Dermatol. 2023;68(1):53-58. — Meta-analysis of 5 studies found ceramide-containing moisturisers produced significantly greater improvement in SCORAD compared with non-ceramide moisturisers in atopic dermatitis.

2023Meta-analysis (positive)PMID:37151263View source ↗

Shindo S et al., Effects of a moisturizer containing pseudo-ceramide and a eucalyptus extract on sweating function in adult atopic dermatitis: a double-blind, randomized, controlled left-right comparison clinical trial, Journal of Cosmetic Dermatology 2022;21(10):4503-4509 — pseudo-ceramide + eucalyptus moisturizer restored sweating function and barrier in AD adults

2022Positive (efficacy)PMID:35298858View source ↗
Polyglutamic AcidAnecdotal evidence3 citations

A hydrator often pitched as "stronger than hyaluronic acid." It sits on the surface, locks water in, and helps your skin make more of its own moisturizers over time.

Ko HJ et al., Poly-gamma-Glutamic Acid from a Novel Bacillus subtilis Strain: Strengthening the Skin Barrier and Improving Moisture Retention in Keratinocytes and a Reconstructed Skin Model, International Journal of Molecular Sciences 2025

2025Mechanism onlyPMID:39940752View source ↗

Li C, Ma H, Li P, Zhang S et al., Cucumber (Cucumis sativus L.) with heterologous poly-gamma-glutamic acid has skin moisturizing, whitening and anti-wrinkle effects, International Journal of Biological Macromolecules 2024;263(Pt 1):130229 — transgenic gamma-PGA-producing cucumber outperformed standard gamma-PGA and hyaluronic acid on hydration, wrinkles (-19 to -25%), and melanin reduction in human skin testing

2024Positive (efficacy)PMID:38336313View source ↗

Yang R et al., Injectable adaptive self-healing hyaluronic acid/poly(gamma-glutamic acid) hydrogel for cutaneous wound healing, Acta Biomaterialia 2021;127:102-115 — HA/gamma-PGA self-healing hydrogel significantly accelerated full-thickness wound closure with enhanced angiogenesis and collagen deposition vs Tegaderm

2021Mechanism onlyPMID:33813093View 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 ↗

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.

Similar comparisons

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