Numbuzin, No.4 Hydrating Glow Mineral Toner, 6.76 fl oz (200 ml)

What it is & key claims

• The No. 4 Hydrating Glow Mineral Toner from Numbuzin is marketed as a moisture‑rich toner that hydrates deeply, refines skin texture, brightens and preps skin for further skincare or makeup.

• Key claims:

  • Contains 89% thermal water (or mineral/onsen‑water base) for deep hydration

  • Includes five layers/types of hyaluronic acid to hydrate multiple layers of the skin. 

  • Contains PHA (polyhydroxy acid) for gentle exfoliation of dead skin cells / smoothing of texture — suitable even for sensitive skin.

  • Contains niacinamide for brightening and evening skin tone. 

• Volume/size: 200 ml (≈6.76 fl oz) as listed by several retailers.

• Suitable for: All skin types; especially those seeking hydration + prep for makeup / glow. 

🔬 Ingredient & formulation highlights

According to multiple sources, some of the key ingredients include:

• Base of “Onsen‑Sui” (thermal/onsen water) or mineral water — high % (89%) for hydration. 

• Hyaluronic acid in several forms: Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Hyaluronic Acid, Cross‑polymer etc. Niacinamide (brightening agent) and botanical extracts: Centella Asiatica, Chamomilla (matricaria) flower extract, etc for soothing. 

• PHA (gluconolactone‑type) for gentle exfoliation / smoothing effect. 

• The formula is advertised as lightweight texture, low‑stickiness, good for layering. 

🧴 How to use

• After cleansing, apply the toner to clean skin. You can either:

  1. Dispense some into your palm and pat it onto face & neck until absorbed.

  2. Or, soak a cotton pad and gently wipe across face and neck; or apply on dehydrated areas like a mini‑mask for 1 minute. 

• Follow with your serum/essence, moisturiser, etc.

• Use morning and evening for best results (or as part of your skincare routine).

🎯 Benefits & what it addresses

• Helps deeply hydrate skin via high % of thermal water + multi‑layer hyaluronic acid.

• Helps improve skin texture and smoothness due to gentle exfoliating PHA.

• Helps brighten skin tone and reduce appearance of dullness via niacinamide.

• Prepares skin for better absorption of following skincare steps and even helps with makeup base adherence (per some claims). 

• Good “glow” effect — radiant, hydrated look.

⚠️ Things to keep in mind / potential limitations

• While the formula is gentle (PHA vs stronger AHAs/BHAs), exfoliating acids still warrant caution if your skin barrier is compromised or you’re using other actives (retinoids, strong acids).

• Even very hydrating toners won’t replace other moisturizing steps — if your skin is very dry or dehydrated you’ll still need a good serum + cream.

• Some users may find the “glow” effect slightly dewy/shiny — if you prefer ultra‑matte finish, you might want something more mattifying.

• Cost and availability: As an imported Korean brand product, pricing in Pakistan or shipping/import may affect cost. Also authenticity is a factor.

• Patch test is always advisable when trying a new toner, especially with exfoliating components. Some user feedback indicates mixed experiences:

  “I had the worst purging because of this…” 

📝 My summary

If you are looking for a toner that goes beyond basic hydration and offers multi‑layer moisture + mild exfoliation + brightening in one step — the Numbuzin No. 4 Hydrating Glow Mineral Toner is a solid choice. It seems especially suited for dehydrated skin, those prepping for makeup, or those wanting a radiant “glow” base.

If your skin is extremely oily and you want a very matte finish, or you are on a tight budget and just want a basic hydrating toner, you might consider lighter or simpler alternatives. But for added benefits and quality ingredients, this toner stands out.