COSRX The Hyaluronic Acid 3 Serum is a lightweight hydrating serum built around hyaluronic acid in several forms. It draws water into the skin, so dehydrated, tight or dull skin looks plumper and smoother, and it suits every skin type, including oily and acne-prone skin that still needs moisture. This COSRX hyaluronic acid serum is the original from COSRX in 20ml, shipped from Seoul with Cash on Delivery.
COSRX Hyaluronic Acid 3 Serum at a glance
| Brand | COSRX |
|---|---|
| Size | 20ml |
| Product type | Hydrating serum |
| Key ingredients | Hyaluronic acid in several forms, with panthenol |
| Best for | Dehydrated skin of any type; skin that feels tight from actives, sun or air-conditioning |
| Texture and finish | Light, slightly gel-like serum; soft, fresh finish |
| When to use | Morning and evening, after toner, before moisturiser |
| Sold in Pakistan by | Korean Skincare Pakistan — an Official Authentic seller of COSRX in Pakistan |
Is COSRX Hyaluronic Acid 3 Serum right for your skin?
Best for
- Oily skin that feels dehydrated underneath, or shiny but tight
- Skin using drying actives such as retinol, acids or acne products
- Dry skin that needs a hydrating layer under a richer cream
Skip it, or patch-test first, if
- You want one product instead of a moisturiser: hyaluronic acid works best sealed in with a cream
- Your skin is very reactive: patch-test on the jawline for 24 hours first
How do you use COSRX Hyaluronic Acid 3 Serum?
Morning
- Cleanse and apply toner; leave the skin slightly damp.
- Press 2–3 drops of the serum into the skin.
- Follow with moisturiser and a broad-spectrum SPF 50 sunscreen.
Evening
- Cleanse and apply toner.
- Apply the serum, then any active serum.
- Seal with a moisturiser such as COSRX Hyaluronic Acid Intensive Cream.
Apply it on damp skin and always follow with moisturiser. In very dry winter air, a serum with nothing on top can leave skin feeling tight again.
What are the key ingredients in COSRX Hyaluronic Acid 3 Serum?
- Hyaluronic acid (several forms) — a humectant that binds water in the skin for a plumper, smoother look
- Panthenol (vitamin B5) — helps skin hold moisture and feel comfortable
- Glycerin — a basic humectant that adds to the hydration
COSRX Hyaluronic Acid 3 Serum vs The Ordinary HA 2% + B5: which should you choose?
| COSRX Hyaluronic Acid 3 Serum | The Ordinary HA 2% + B5 | |
|---|---|---|
| Key ingredients | Hyaluronic acid in several forms, panthenol | Hyaluronic acid (several forms), vitamin B5, ceramides |
| Texture | Light, slightly gel-like serum | Clear, light gel serum |
| Step in the routine | After toner, before moisturiser | After toner, before moisturiser |
| Brand | COSRX (Korea) | The Ordinary |
Both are simple hydrating serums used the same way. Choose the COSRX serum if you build a COSRX routine or want a small bottle to try. Choose The Ordinary serum if you also want ceramides in the same step.
How can you tell if your COSRX Hyaluronic Acid 3 Serum is original?
- The serum should be clear and light, absorb within a minute and have almost no smell; a cloudy, watery or perfumed liquid is a warning sign.
- The box should be sealed, with the COSRX name, product name and ingredient list printed clearly; blurred printing or spelling mistakes suggest a copy.
- A price far below other trusted sellers usually means old stock or a fake.
- Check the batch code printed on the box and the bottle: the two must match, and the code should look printed, not stuck on. Every unit we sell is batch-code checked on arrival in Seoul, and we verify any code for free — see how to check if Korean skincare is original.
Similar products to consider
- COSRX Hyaluronic Acid Hydra Power Essence 100ml
- The Ordinary Hyaluronic Acid 2% + B5 + Ceramides Serum
- ANUA PDRN Hyaluronic Acid Capsule 100 Serum
Related guides and collections
- All COSRX products in Pakistan
- Is Korean Skincare Pakistan an official authentic COSRX seller?
- Hyaluronic acid skincare in Pakistan
- Korean skincare for dry skin
Korean Skincare Pakistan is a Seoul-based authorised seller of major 40+ K-beauty brands. Every product is 100% original, batch-code verified on arrival and shipped from our Seoul warehouse, delivered to your door in 5–7 days nationwide with Cash on Delivery.
COSRX Hyaluronic Acid 3 Serum: frequently asked questions
Is the COSRX The Hyaluronic Acid 3 Serum at Korean Skincare Pakistan original?
Yes. Korean Skincare Pakistan is an Official Authentic seller of COSRX in Pakistan. Our stock is bought from official COSRX channels in Seoul, every unit is batch-code checked on arrival and shipped from our Seoul warehouse. If a product is ever not original, an old batch or near expiry, you can return it free within 7 days.
How do you use a hyaluronic acid serum?
Apply it after cleansing and toner, while your skin is still slightly damp. Press 2–3 drops in, wait a moment, then seal it with a moisturiser. In the morning, finish with sunscreen. Using a cream on top matters most in dry air, because it keeps the water the serum draws in.
Is the COSRX hyaluronic acid serum good for oily skin?
Yes. Oily skin is often dehydrated underneath, and a light hyaluronic acid serum adds water without oil. It does not feel heavy in hot weather and works under a gel moisturiser and sunscreen. Pair it with a salicylic acid cleanser if breakouts are your main concern.
Can I use it with niacinamide, vitamin C or retinol?
Yes. Hyaluronic acid works with almost every active. Use it before thicker serums, or after a watery vitamin C serum once that has absorbed. It is a good partner for retinol and acids, because it helps skin feel less dry while you use them.
Is COSRX a Korean brand, and is it available in Pakistan?
Yes. COSRX is a South Korean skincare brand, best known for its snail mucin essence and simple, active-focused serums. Korean Skincare Pakistan is an Official Authentic seller of COSRX in Pakistan and ships every order from Seoul in 5–7 days with Cash on Delivery.
Where can I buy the original COSRX Hyaluronic Acid 3 Serum in Pakistan?
The original is sold here by Korean Skincare Pakistan, an Official Authentic seller of COSRX in Pakistan. Each bottle comes from official COSRX channels in Seoul and is batch-code checked before it ships, with Cash on Delivery. The live price and stock show right under the Add to Cart button.
