No. 2 Cica Ceramide Repair Cream

The ceramide cream market has a dirty secret: most products that advertise ceramides use them at trace concentrations, relying on the ingredient's name recognition rather than its actual efficacy. When Numbuzin reformulated their No. 2 cream in 2022 and disclosed a 10,000 ppm ceramide NP concentration, they did something uncomfortably rare in skincare — they showed their math.

That 10,000 ppm figure equals 1% ceramide NP, which might sound modest until you understand that ceramides are not the kind of ingredient that works on a more-is-better scale. What matters far more than raw concentration is the supporting cast. The skin's intercellular lipid matrix operates on a roughly 3:1:1 ratio of ceramides, cholesterol, and free fatty acids. Disrupt that ratio and you get an expensive moisturizer. Replicate it and you get genuine barrier repair. Numbuzin's formula includes cholesterol and phytosphingosine alongside the ceramide NP — the three essential components that dermatological research has identified as critical for mimicking the skin's natural lipid structure. This isn't marketing cleverness. This is the formulation approach used in prescription-adjacent barrier repair products that typically cost significantly more.

The centella complex deserves its own paragraph because Numbuzin didn't take the easy route here either. Most cica products use a generic centella asiatica extract and call it a day. This formula breaks centella down into its four isolated active compounds: madecassoside, asiaticoside, madecassic acid, and asiatic acid. Each has a slightly different mechanism — madecassoside leads on anti-inflammatory action, asiaticoside stimulates collagen synthesis, and the two acids contribute to wound healing and antioxidant defense. Whether the concentrations of each are optimized is impossible to verify without independent testing, but the inclusion of all four at minimum signals a formulator who understands centella's pharmacology beyond the buzzword.

In the jar, the cream looks deceptively rich — thick, opaque, almost balm-like. The texture tells a different story on contact. It melts on skin with the warmth of your hands, transforming from a dense cream into something surprisingly lightweight that absorbs within thirty seconds. There's no sticky residue, no heavy film, no sense of sitting on the surface waiting to transfer onto your pillowcase. Shea butter is the third ingredient and provides the initial richness, but the silicone and emulsifier system ensures everything sinks in rather than sitting on top. It's the kind of texture that makes you understand why Korean formulation chemistry has such a devoted following.

The soothing effect is noticeable from the first application. If your skin is angry — from over-exfoliation, retinoid irritation, wind-burned winter dryness, or just the general assault of modern life on a sensitive skin barrier — this cream feels like a ceasefire. The combination of bisabolol (a chamomile-derived anti-inflammatory), the centella complex, and beta-glucan creates a multi-pathway calming system that addresses redness and reactivity from several angles simultaneously. Users who incorporate this after retinol or chemical exfoliant nights consistently report that it buffers the irritation without neutralizing the treatment's benefits.

Niacinamide appears on the ingredient list but warrants expectation management. At approximately 1%, it falls below the 2-5% concentration range where most studies demonstrate significant brightening or oil-control benefits. In this formula, niacinamide likely serves a supporting role — low concentrations can still upregulate the skin's own ceramide production, which complements the externally supplied ceramide NP nicely. But if you're looking for standalone niacinamide benefits, this isn't your product.

The honest limitations start with packaging. Jar packaging exposes the product to air and fingers with each use, which isn't ideal for ingredient stability — ceramides and centella actives are reasonably stable, but an airless pump would better preserve everything, especially over the 12-month use period. The 60 mL size is also on the smaller side for a cream you'll want to use twice daily; expect to finish it in two to three months, which affects the value calculation somewhat.

Some of the botanical extracts further down the ingredient list — fig fruit extract, kelp extract, amaranthus seed extract — read more like a K-beauty ingredient flex than functionally necessary additions. They're not harmful, but their concentrations are likely too low to contribute meaningfully to the formula's performance. The cream works because of its ceramide-cholesterol-phytosphingosine backbone and its centella complex, not because of trace amounts of eclipta prostrata leaf.

The presence of alcohol (denatured) near the end of the ingredient list has raised eyebrows in some reviews, but its position suggests a concentration well below 1% — likely serving as a solvent for one of the botanical extracts rather than as a functional drying agent. At this level, it's not a meaningful concern for most skin types.

At roughly $20 for 60 mL, the value proposition is strong. You're getting a barrier repair formula built on sound science — the ceramide-cholesterol-fatty acid trio, a multi-compound centella complex, dual-weight hyaluronic acid, and shea butter — at a price that undercuts many competitors offering less sophisticated formulations. Numbuzin is an emerging brand without decades of clinical track record, but the formulation work on this specific product demonstrates genuine understanding of barrier science rather than just ingredient list padding.

Formula

The Science

The scientific foundation of this cream rests on the ceramide-cholesterol-fatty acid model of barrier repair, which has been the gold standard in dermatological research for decades. A landmark 1996 study by Imokawa et al. in the Journal of Investigative Dermatology established that ceramides are the dominant lipid class in the stratum corneum's intercellular matrix, comprising approximately 50% of the lipid content. Subsequent research demonstrated that the most effective barrier repair formulations mimic the skin's natural lipid ratio of approximately 3:1:1 ceramides to cholesterol to free fatty acids.

This formula delivers all three components: Ceramide NP at a disclosed 10,000 ppm, cholesterol, and phytosphingosine (a sphingoid base that the skin converts into additional ceramides). The inclusion of phytosphingosine is particularly noteworthy — beyond serving as a ceramide precursor, it has demonstrated antimicrobial properties against Propionibacterium acnes in vitro.

The centella asiatica complex represents a more targeted approach than generic extract. Madecassoside, the primary active, has been shown in multiple studies to promote wound healing through stimulation of collagen type I synthesis and inhibition of the inflammatory NF-kB pathway. A 2012 study published in the International Journal of Molecular Sciences documented madecassoside's ability to accelerate wound healing in both in vitro and animal models. Asiaticoside complements this by stimulating collagen synthesis through a different pathway — activating TGF-beta signaling.

The dual hyaluronic acid system (sodium hyaluronate at standard molecular weight plus hydrolyzed hyaluronic acid at lower molecular weight) follows the principle that different molecular weights address different layers of the skin. Standard-weight HA forms a hydrating film on the surface, while the smaller hydrolyzed form penetrates into the epidermis for deeper hydration. A 2012 study in the Journal of Clinical and Aesthetic Dermatology confirmed that multi-weight HA formulations provide superior hydration compared to single-weight alternatives.

References

1. Decreased level of ceramides in stratum corneum of atopic dermatitis: an etiologic factor in atopic dry skin? — Journal of Investigative Dermatology (1991)
2. Madecassoside, the main active compound of Centella asiatica, on wound healing — International Journal of Molecular Sciences (2012)
3. Novel hyaluronic acid dermal fillers: clinical and dermal considerations — Journal of Clinical and Aesthetic Dermatology (2012)

Dermatologist Perspective

Board-certified dermatologists frequently recommend ceramide-containing moisturizers for patients with compromised barriers, eczema, and retinoid-induced irritation. The inclusion of cholesterol and phytosphingosine alongside ceramide NP in this formula aligns with the approach dermatologists consider most effective — mimicking the skin's natural lipid composition rather than relying on ceramide alone. Dermatologists would note that this cream's fragrance-free formulation makes it suitable for post-procedure use and for patients with rosacea-prone skin. The centella complex adds anti-inflammatory benefits that dermatologists often look for in a recovery cream. While the brand lacks the clinical pedigree of legacy dermatologist-developed lines, the formulation science is sound and the disclosed concentration adds a level of transparency that dermatologists appreciate.

Guidance

Part of Numbuzin's No. 2 line dedicated to barrier repair and skin calming. The current version is a renewed formula that upgraded the ceramide concentration to 10,000 ppm and refined the centella complex. The product gained traction in Korean skincare communities as a post-procedure and post-retinol recovery cream before expanding internationally through Olive Young.

About Numbuzin Emerging Brand (2–5 years)

Numbuzin launched in 2019 as a K-beauty brand under parent company Benow, gaining rapid popularity through Olive Young and social media. While its formulations use well-studied ingredients, the brand has a limited independent clinical track record and relies primarily on consumer validation and viral buzz.

Brand founded: 2019 · Product launched: 2022

Myth vs. Reality

Myth

Ceramide creams are only for dry skin types.

Reality

All skin types have ceramides as part of their barrier structure, and even oily or combination skin can benefit from ceramide replenishment after using stripping cleansers or aggressive actives. This cream's lightweight absorption profile makes it workable for non-dry skin types, though very oily skin may prefer a lighter ceramide serum.

Myth

The higher the ceramide concentration, the better the barrier repair.

Reality

Ceramides work best in synergy with cholesterol and free fatty acids at roughly a 3:1:1 ratio that mimics the skin's natural lipid composition. This formula includes all three components (ceramide NP, cholesterol, phytosphingosine), and the balance matters more than maximum ceramide concentration alone.

FAQ

Common Praise

"Game-changer for compromised and over-exfoliated skin barriers"

"Buttery texture melts into skin without feeling greasy or heavy"

"Effectively calms redness and irritation from active ingredients"

"Absorbs quickly despite rich consistency"

"Fragrance-free formula gentle enough for reactive sensitive skin"

Common Complaints

"Jar packaging is less hygienic than a pump or tube"

"60 mL size runs out quickly with twice-daily use"

"May not be sufficiently hydrating for very dry skin in harsh winter climates"

"Contains some botanical extracts with unclear functional benefit"

"Niacinamide concentration too low for standalone brightening effects"

Appears In

best moisturizer for compromised skin barrier best ceramide cream for sensitive skin best k beauty moisturizer best moisturizer for sensitivity best cica cream

Related Conditions

compromised skin barrier sensitivity dryness eczema rosacea

Related Ingredients

ceramides centella asiatica niacinamide shea butter hyaluronic acid