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Cet6.0
Ceramides (topical) – Forschung
Überwiegend Mechanismus / Beobachtung
6 begutachtete Studien
Was die Evidenz sagt
Überwiegend Mechanismus / Beobachtung
Die meisten Studien zu Ceramides (topical) sind mechanistisch oder beobachtend statt RCTs, die einen klinischen Effekt messen — betrachte die Ergebnisse als vorläufig.
Die meiste Evidenz stammt aus gemischt-qualitativen randomisierten Studien, veröffentlicht 1991–2024 mit einer typischen Studiengröße von 35 Teilnehmenden.
Basierend auf 6 Studien · 4 RCTs · 170 Teilnehmende insgesamt
Konfidenz
Mittlere Konfidenz
Nach Outcome
Skin healthVerbesserte Hydratation und Barrierefunktion (geringerer Wasserverlust), glattere, weniger trockene Haut (kosmetisch, kein gesundheitliches Ergebnis) · 1-4 Wochen
Überwiegend Mechanismus / Beobachtung6 Studien
Aktives Forschungsgebiet
2 Studien in den letzten 5 Jahren
199120072024
1RCTn=34 · small study2022
In the test cream group, a significant increase in the stratum corneum moisture content (p < 0.01) and significant decrease in transepidermal water loss (p < 0.05) were observed at weeks 1 and 2 after application compared with those before application. No such change was observed in the control group.
Okoshi K, Kinugasa Y, Ito S, Kume T, Seki T, Nishizaka T, Okada J, Kawada H, Nagasawa A, Iijima M, Abe M, Nemoto O. · Dermatol Ther (Heidelb) (2022)
Randomized double-blind study (n=34): a pseudo-ceramide cream formed a lamellar structure (~8.2 nm spacing) mimicking the human stratum corneum
Versus a matched control cream, the ceramide cream significantly raised stratum-corneum moisture and lowered TEWL by weeks 1-2
Anti-inflammatory effects were comparable between creams — the added benefit was specifically on barrier function
In atopic dermatitis (n = 32-35), there was a marked reduction in the amount of ceramides in the lesional forearm skin compared with those of healthy individuals of the same age.
Imokawa G, Abe A, Jin K, Higaki Y, Kawashima M, Hidano A. · J Invest Dermatol (1991)
Lesional atopic-dermatitis skin showed a marked reduction in stratum-corneum ceramide content versus age-matched healthy controls
Non-lesional atopic skin also showed a significant ceramide decrease; ceramide 1 was the most reduced fraction
Concludes ceramide insufficiency is an etiologic factor in atopic dry skin — the rationale for topical replacement
No statistically significant difference for any efficacy assessment was found between the three groups at each time point. The OTC-Pet was found to be at least 47 times more cost-effective than BRC-Gly or BRC-Cer.
Miller DW, Koch SB, Yentzer BA, Clark AR, O'Neill JR, Fountain J, Weber TM, Fleischer AB Jr. · J Drugs Dermatol (2011)
Children (n=39) with mild-to-moderate atopic dermatitis randomized to a ceramide-dominant barrier cream, a glycyrrhetinic-acid cream, or OTC petroleum-based ointment
No statistically significant efficacy difference between the ceramide cream and plain petrolatum at any time point
The OTC petrolatum ointment was at least 47x more cost-effective — the key counter-evidence (no demonstrated advantage)
5RCTn=42 · small study2020
The ceramide-based cream had a significantly lower mean VAS score (mean 0.69, SD = 1.63) for irritation compared with urea 5% cream (1.43, SD = 1.64) (p = 0.035).
Ho VPY, Ma E, Liew HM, Ng MSY, Koh MJA. · Dermatol Ther (Heidelb) (2020)
Single-blind split-body RCT (n=42, ages 8-16) comparing a ceramide-based cream vs urea 5% cream on excoriated atopic-dermatitis skin
The ceramide cream caused significantly less immediate irritation than urea 5%
More participants preferred the ceramide cream (62% vs 38%), though preference did not reach significance — supports excellent tolerability
Both formulations achieved statistically significant improvement in all clinical signs and symptoms of atopic dermatitis by week 4, however the hyaluronic acid foam achieved statistically significant improvement in overall eczema severity by week 2, whereas the ceramide-containing emulsion cream did not.
Draelos ZD. · J Cosmet Dermatol (2011)
Double-blind split-body RCT (n=20) comparing a ceramide-containing emulsion cream vs a hyaluronic-acid foam in mild-to-moderate atopic dermatitis
Both significantly improved all AD signs/symptoms by week 4 (confirming the ceramide cream works), but the HA foam improved overall severity faster (by week 2)
Counter-evidence: the ceramide cream was not superior to an alternative humectant; subjects preferred the comparator foam