Hey skincare fam! I'm absolutely obsessed with skincare science (yes, I read clinical ingredient breakdowns for fun). Recently, I scored the limited‑edition Numbuzin No.1 Pantothenic B5 Active Soothing Serum with the adorable Pochacco Sanrio packaging (sky-blue pump bottle featuring Pochacco 🐶), and I’ve been testing it for several weeks now. Here's my deep nerdy breakdown on why it’s worth the hype—or maybe not—for oily, combo, or acne-prone skin types.

🎨 Packaging & Aesthetic Vibes

First off, can we talk about that bottle? Transparent clear glass-ish plastic with a pastel sky‑blue label featuring Pochacco, K‑beauty turns cute into art. The pump is soft and precise, super easy to dispense 2–3 pumps without waste. The blue cap feels cool to touch and makes it travel‑safe. It’s functional cuteness, perfect for building that “shelfie aesthetic.”

🧪 Ingredient Analysis + Claims

Here’s what officially is inside, per YesStyle and the brand website.

Micro pantothenic acid (B5) & panthenol (~1%) – for barrier repair, hydration, and calming.

Beta-glucan – to soothe redness and support immunity of skin.

Niacinamide – oil control, pore refining, and brightening.

Hyaluronic acid / trehalose / sodium hyaluronate mix – fast-absorbing hydration.

Soothing Booster 12 Complex including dipotassium glycyrrhizate, licorice root extract, sophora, heartleaf, centella etc. for anti-inflammatory support. 

💧 Texture & Application II: What It's Like on Skin

Consistency: Lightweight, water‑gel texture—not milky, not thick—evaporates fast.

Scent: Almost no fragrance. It’s clean, slightly plant‑like, very subtle.

Absorption: Dries down completely in less than a minute. Leaves no tacky film.

Finish: My combination/oily skin woke up more balanced, less midday shine, slightly matte but never dry-looking.

📅 My Routine & Observations (3+ Week Use)

Here’s my current usage plan, textbook “skin science meets practice”

Mornings

Double cleanse (gentle oil cleanser + low-pH gel cleanser) - Toner - 2 pumps of this serum, gently patted into T-zone and cheeks - Light moisturizer if needed - SPF (always!)

Evenings

Oil cleanse (if wearing makeup) - Follow up with the serum (sometimes layered after AHA/BHA) - Moisturizer or sleeping mask 

Results so far

Oil control: My T-zone no longer looks glossy at midday. Skin feels smoother.

Breakouts: Old pimples heal faster. New ones are smaller and calmer.

Texture: Cheeks and jawline feel softer, more elastic.

Redness: Flare-ups subside more quickly after applying purifier toner or lotion. No irritation so far. 

✅ Pros & Cons Table

Pros Cons

Lightweight, non-greasy hydrating gel Pantothenic acid content low if you're expecting high dose

Soothes redness and breakouts gently Not ultra‑moisturizing for extremely dry skin

Helps oil control without stripping Some report whiteheads/comedones after use (individual reaction) 

Blends seamlessly into layers, not pilling May not replace actives like benzoyl peroxide for severe acne

Cute Pochacco packaging adds joy to routine Hard to find in US retail yet

🔬 Skincare Science + My Verdict

From a “skincare nerd” perspective, the blend of panthenol + beta-glucan + niacinamide + hyaluronic acid makes sense for acne-prone or oily skin needing hydration and barrier repair. The Soothing Booster Complex provides herbal anti-inflammatory support. While pantothenic acid percentage may be small, the synergy of ingredients delivers visible results.

Given Vogue named this serum the “Best for Acne” in Korea with oil-regulating and soothing properties, it's no wonder it’s trending. 

After a month of consistent use, it's earned 4.6/5 from me. Love it for everyday maintenance, especially in warmer months. 

Will I repurchase? Totally, if it becomes easier to buy in the States or they restock this cute Pochacco edition!

🧠 Final Rating: 4.6 / 5 — Numbuzin No.1 Pantothenic B5 Active Soothing Serum

If you have oily or combination skin, deal with mild breakouts or redness, and want a hydrating yet non-greasy serum that also helps manage oil, this is a smart pick. For dry skin types or severe acne, you'll likely need more occlusion or targeted treatments, but as a soothing, balancing serum? It’s a winner.