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Vitamin C Serum

Vitamin C Serum

Product Description

A lightweight, fast-absorbing vitamin C serum with double brightening actives that helps even skin tone, fade dark spots, and protect against free radicals. Formulated with stable Sodium Ascorbyl Phosphate (2%) and Niacinamide (2%) for visible results in 14 days.

๐Ÿ‡ฎ๐Ÿ‡ฉ I-Beauty ยท Made in Indonesia
โœ” Paraben-Free โœ” Silicone-Free โœ” Sulfate-Free โœ” Alcohol-Free โœ” Halal Certified โœ” BPOM Approved โœ” Cruelty-Free
Pregnancy Safe
Yes โœ”
Fungal Acne Safe
Caution โš ๏ธ
Comedogenic Rating
1/5
๐Ÿ“
Size
20ml
๐ŸŠ
Vitamin C
SAP 2%
โœจ
Niacinamide
2%
โš—๏ธ
pH Level
~7
๐Ÿงด
Format
Dropper

โœจ Texture & Feel

๐Ÿ’ง
Consistency
Watery-Gel
๐Ÿ‘ƒ
Scent
Light Citrus
โฑ๏ธ
Absorption
15-30 seconds
๐ŸŽฏ
Finish
Dewy-Fresh
๐ŸŠ

Double Brightening Action

Combines stable Vitamin C (SAP) with Niacinamide to target dullness and uneven skin tone from multiple angles.

๐Ÿ›ก๏ธ

Antioxidant Protection

Shields skin from UV damage, blue light, and environmental pollutants that cause premature aging.

๐Ÿ’ง

Hydration Boost

Glycerin, Betaine, and Urea work together to attract and lock in moisture for plump, supple skin.

๐ŸŒฟ

Gentle Formula

Sodium Ascorbyl Phosphate is a stable, non-irritating form of Vitamin C suitable for sensitive skin.

๐Ÿ›ก๏ธ Safety & Compatibility

โœ…
Pregnancy & Breastfeeding Safe

Contains Sodium Ascorbyl Phosphate, a gentle Vitamin C derivative confirmed safe for use during pregnancy and breastfeeding. No retinoids, hydroquinone, or other restricted ingredients.

โš ๏ธ
Fungal Acne: Use with Caution

Contains Glycine Soja Sterols (soybean-derived) which may potentially feed Malassezia yeast. Patch test recommended if you're prone to fungal acne.

โœ…
Low Comedogenic Rating

Rated 1/5 on comedogenic scale. Water-based formula with no heavy oils or pore-clogging ingredients makes it safe for acne-prone skin.

โ„น๏ธ
Contains Fragrance

Light citrus scent from parfum. If you have extremely sensitive or reactive skin, perform a patch test first.

๐Ÿ”ฌ Ingredient Breakdown

๐ŸŠ Sodium Ascorbyl Phosphate 2% Proven

A stable, water-soluble derivative of Vitamin C that converts to active ascorbic acid in the skin. Gentler than pure L-ascorbic acid while still delivering brightening, antioxidant, and anti-aging benefits.

  • Brightening: Inhibits melanin production to fade dark spots and even skin tone
  • Anti-Acne: 2005 study showed 1% SAP has antimicrobial activity against P. acnes bacteria
  • Collagen Boost: Stimulates collagen synthesis for firmer, more elastic skin
  • Stability: Remains effective at neutral pH (~7), unlike L-ascorbic acid which needs low pH
๐Ÿ’ก
SAP is ideal for sensitive skin and Vitamin C beginners. No oxidation concerns like with pure ascorbic acid serums.

โœจ Niacinamide 2% Proven

A multitasking form of Vitamin B3 that strengthens skin barrier, reduces inflammation, and works synergistically with Vitamin C for enhanced brightening effects.

  • Barrier Support: Increases ceramide synthesis for stronger, healthier skin
  • Oil Control: Regulates sebum production to minimize shine
  • Pore Minimizing: Helps reduce appearance of enlarged pores over time
  • Anti-Aging: Improves fine lines and wrinkles at concentrations of 4-5%
โš ๏ธ
At 2%, this is a gentle introductory concentration. For stronger pore-minimizing effects, look for 5%+ formulas.

๐Ÿ’ง Glycerin & Humectants High Proven

A powerhouse hydration trio: Glycerin, Urea, and Betaine work together to attract and retain moisture in the skin.

  • Glycerin: 2016 study found it more effective than hyaluronic acid as a humectant
  • Urea: Natural moisturizing factor (NMF) component that softens and smooths skin
  • Betaine (1%): Sugar beet-derived osmolyte that protects cells from dehydration

๐ŸŒŠ Biosaccharide Gum-1 (Fucogel) Present Promising

A patented algae-derived ingredient (marketed as Fucogel) that provides immediate and long-lasting moisturization with anti-aging benefits.

  • Soothing: Calms irritated and sensitive skin
  • Hydrating: Creates a moisture-locking film on skin surface
  • Anti-Aging: Helps improve skin elasticity and firmness

๐Ÿฉน Allantoin Present Proven

A gentle, well-tolerated ingredient known for its soothing and skin-conditioning properties.

  • Anti-Inflammatory: Reduces redness and irritation
  • Cell Regeneration: Promotes healthy skin cell turnover
  • Protective: Forms a protective barrier on skin surface

25 ingredients

Aqua, Glycerin, Butylene Glycol, Sodium Ascorbyl Phosphate (2%), Niacinamide (2%), Urea, Betaine (1%), Biosaccharide Gum-1, Ethoxydiglycol, Phenoxyethanol, Citric Acid, Carbomer, Allantoin, Xanthan Gum, Parfum, Triethylene Glycol, Aminomethyl Propanol, Disodium EDTA, Sodium Metabisulfite, Hydrogenated Lecithin, CI 15985, Glycine Soja Sterols, Sodium Polygamma-Glutamate, 2-Aminobutanol, Chlorphenesin

FREE FROM: Parabens, Silicones, Sulfates, Drying Alcohols, Mineral Oil, Artificial Colors (except CI 15985 for product identification), Harsh Preservatives

๐Ÿ”„ Where It Fits in Your Routine

1
Cleanser
2
Toner
3
Vitamin C Serum
4
Moisturizer
5
Sunscreen (AM)

Use AM and/or PM. Always follow with SPF 30+ sunscreen during daytime use.

๐Ÿ“ How to Use

1

Cleanse & Tone

Start with clean, slightly damp skin. Apply your favorite toner if using one.

2

Dispense 2-3 Drops

Using the dropper, place 2-3 drops onto your fingertips or directly onto face. Keep dropper 1cm from skin to avoid contamination.

3

Pat & Press

Gently pat and press the serum into skin, covering face and neck. Avoid rubbing to maximize absorption.

4

Follow Up

Wait 30 seconds for absorption, then apply moisturizer. In the morning, always finish with SPF 30+ sunscreen.

๐Ÿ‘ค Who Is It For?

โœ… Perfect for you if:

  • You want to brighten dull, tired-looking skin
  • You're new to Vitamin C serums and need a gentle formula
  • You have post-acne marks or uneven skin tone
  • You're pregnant/breastfeeding and need safe brightening options
  • You're on a budget but want effective skincare
  • You have oily or combination skin

โŒ Consider alternatives if:

  • You need high-potency Vitamin C (10%+ L-ascorbic acid)
  • You have severe hyperpigmentation requiring stronger actives
  • You're prone to fungal acne (contains soy sterols)
  • You're extremely sensitive to any fragrance
  • You want anti-aging as primary concern (try retinol instead)

๐ŸŽฏ Skin Type Compatibility

Oily Skin โ˜…โ˜…โ˜…โ˜…โ˜… Excellent

Lightweight, watery texture absorbs quickly without adding shine. Niacinamide helps regulate oil production.

Dry Skin โ˜…โ˜…โ˜…โ˜…โ˜† Good

Provides hydration via glycerin and betaine, but may need a richer moisturizer on top for very dry skin.

Combination โ˜…โ˜…โ˜…โ˜…โ˜… Excellent

Balances well across different face zones. Light enough for T-zone, hydrating enough for cheeks.

Sensitive โ˜…โ˜…โ˜…โ˜…โ˜† Good

Gentle SAP formula is well-tolerated. Contains fragrance, so patch test if extremely reactive.

Acne-Prone โ˜…โ˜…โ˜…โ˜…โ˜† Good

Low comedogenic rating (1/5). SAP has antibacterial properties against acne bacteria. Watch for fungal acne concerns.

๐Ÿ“ˆ Results Timeline

Week 1-2

Immediate Hydration & Glow

Skin feels more hydrated, supple, and has a healthy dewy glow. Some users notice improved skin texture.

85% noticed hydration improvement
Week 2-4

Brighter, More Even Tone

Overall complexion appears brighter and more radiant. Light post-acne marks begin to fade. Brand claims visible brightening in 14 days.

70% noticed brightening effects
Week 4-8

Visible Dark Spot Reduction

Noticeable fading of hyperpigmentation, sun spots, and acne scars. Skin tone appears more uniform.

60% noticed dark spot improvement
Week 8-12

Long-Term Skin Health

Continued improvement in skin texture, clarity, and resilience. Best results with consistent daily use combined with sunscreen.

75% reported overall skin improvement

โญ Ratings by Platform

๐ŸŒธ GoPicky
โ˜…โ˜…โ˜…โ˜… 4.3
Rating
18+
Reviews
โš ๏ธ Main complaint: Slight stickiness, needs to be stored in fridge
๐Ÿ›’ Tokopedia
โ˜…โ˜…โ˜…โ˜…โ˜… 5.0
Rating
2,400+
Sold
โš ๏ธ Main complaint: Small bottle size (20ml) runs out quickly
๐Ÿช Watsons Indonesia
โ˜…โ˜…โ˜…โ˜… 4.5
Rating
500+
Reviews
โš ๏ธ Main complaint: May cause breakouts for some fungal acne prone users
๐Ÿ›’ eBay International
โ˜…โ˜…โ˜…โ˜…โ˜… 5.0
Rating
50+
Sold
โš ๏ธ Main complaint: International shipping takes time

โš–๏ธ Pros & Cons

โœ… Praised

  • Extremely affordable price point
  • Lightweight, fast-absorbing texture
  • Gentle formula suitable for beginners
  • Visible brightening results in 2 weeks
  • Pregnancy and breastfeeding safe
  • No irritation or stinging sensation
  • Halal certified and BPOM approved
  • Leaves skin feeling fresh and hydrated

โŒ Criticized

  • Low Vitamin C concentration (2%)
  • Small bottle size (20ml)
  • Slight sticky feeling for some users
  • Contains fragrance (parfum)
  • May not be fungal acne safe
  • Results slower than high-potency serums
  • Limited international availability

๐Ÿ’ฐ Budget-Friendly Alternatives (Dupes)

85% Match
The Ordinary Ascorbyl Glucoside 12%
$13.90 Budget Pick

Higher concentration (12%) stable Vitamin C derivative. Similar gentle approach but without niacinamide. Water-based, fragrance-free formula.

75% Match
Mad Hippie Vitamin C Serum
$28.00 Similar

Also uses Sodium Ascorbyl Phosphate. Fungal acne safe, adds Ferulic Acid and Vitamin E for enhanced antioxidant protection. Fragrance-free.

70% Match
Melano CC Vitamin C Essence
$12.00 Budget Pick

Japanese formula using pure Ascorbic Acid. More potent for spot treatment, tube packaging prevents oxidation. Oil-based texture.

65% Match
Timeless 20% Vitamin C + E Ferulic
$26.00 Premium

Much higher potency (20% L-ascorbic acid). SkinCeuticals CE Ferulic dupe. More effective but also more irritating potential.

๐Ÿ”„ Comparison with Competitors

The Ordinary Vitamin C 23% + HA

$5.80
Vitamin C Type L-Ascorbic Acid 23%
Size 30ml
Additional Actives Hyaluronic Acid 2%
Pregnancy Safe Yes
Fungal Acne Safe No (Coconut Alkanes)
Best For High Potency Seekers

Melano CC Vitamin C Essence

$12.00
Vitamin C Type Ascorbic Acid (undisclosed %)
Size 20ml
Additional Actives Vitamin E, Dipotassium Glycyrrhizate
Pregnancy Safe Yes
Fungal Acne Safe Yes
Best For Spot Treatment

Timeless 20% Vitamin C + E Ferulic

$26.00
Vitamin C Type L-Ascorbic Acid 20%
Size 30ml
Additional Actives Vitamin E, Ferulic Acid, HA
Pregnancy Safe Yes
Fungal Acne Safe Yes
Best For Anti-Aging, Pro Users

๐Ÿ“ฆ Storage & Shelf Life

๐Ÿ“…
Period After Opening (PAO)

12 months after opening. SAP is more stable than L-ascorbic acid, but use within 1 year for best results.

๐Ÿ 
Storage

Store in a cool, dry place away from direct sunlight. Refrigeration recommended for extended freshness.

๐Ÿ“ฆ
Packaging

Glass dropper bottle. Keep cap tightly closed after each use to prevent oxidation.

โœˆ๏ธ
Travel Friendly

Yes, 20ml is under the 100ml TSA liquid limit. Use a protective case for glass bottle.

โ“ Frequently Asked Questions

Yes, Hanasui Vitamin C Serum is safe during pregnancy and breastfeeding. It contains Sodium Ascorbyl Phosphate (SAP), a gentle and stable form of Vitamin C that is widely considered safe for use during pregnancy. The formula does not contain retinoids, hydroquinone, salicylic acid, or any other ingredients typically restricted during pregnancy.

Use with caution if you're prone to fungal acne. The serum contains Glycine Soja (Soybean) Sterols, which may potentially feed Malassezia yeast according to some ingredient databases. While many users with fungal acne use this without issues, patch testing is recommended. For a confirmed fungal-acne-safe alternative, consider Mad Hippie Vitamin C Serum or Melano CC.

Yes, but with timing considerations. This serum uses a stable SAP form of Vitamin C that works well at neutral pH, making it compatible with most actives. However, for best results: use Vitamin C in the morning and retinol at night. If using AHA/BHA, apply them at different times or on alternate days to avoid over-exfoliation. Wait 5-10 minutes between applying different actives.

This serum is excellent for oily, combination, and normal skin types due to its lightweight, water-based texture. It's also good for sensitive skin thanks to the gentle SAP formula. Dry skin types can use it but may need to layer a richer moisturizer on top. It's particularly well-suited for Vitamin C beginners and those seeking gentle brightening.

Most users notice improved hydration and a subtle glow within 1-2 weeks. The brand claims visible brightening in 14 days of consistent use. For significant fading of dark spots and hyperpigmentation, expect 4-8 weeks of daily use. Full results for skin texture improvement typically take 8-12 weeks. Consistency and daily sunscreen use are key.

Apply after cleansing and toning, before moisturizer. The order is: Cleanser โ†’ Toner โ†’ Hanasui Vitamin C Serum โ†’ Moisturizer โ†’ Sunscreen (AM). If using other serums, apply in order of thinnest to thickest consistency. This serum can be used both morning and night, but always use sunscreen during the day.

Hanasui Vitamin C Serum has a low comedogenic rating of 1/5. It's a water-based formula without heavy oils, silicones, or common pore-clogging ingredients. Most acne-prone users can use this without experiencing breakouts. However, individual reactions vary - if you're extremely acne-prone, patch test first on a small area for a week.

The serum has a PAO (Period After Opening) of 12 months. Since it uses stable Sodium Ascorbyl Phosphate instead of pure L-ascorbic acid, it's less prone to oxidation. Store in a cool, dry place away from sunlight. If the product changes color significantly (becomes dark orange/brown), it may have degraded and should be replaced.

โ˜…โ˜…โ˜…โ˜…โ˜†
4.2 out of 5

Verdict: Hanasui Vitamin C Serum is an excellent entry-level brightening serum at an unbeatable price point. The gentle Sodium Ascorbyl Phosphate formula makes it perfect for Vitamin C beginners, sensitive skin, and pregnant/breastfeeding individuals. While the 2% concentration is lower than premium alternatives, the addition of Niacinamide provides synergistic brightening benefits. Best suited for those seeking gradual, gentle brightening rather than aggressive hyperpigmentation treatment. For the price, it's hard to find a better introduction to Vitamin C skincare.

Product Overview

question
lightbulb What are Quick Product Notes?

Quick product notes are a great way to check if a product is free from commonly avoided ingredients by skincare enthusiasts. These preferences come about for different reasons depending on the ingredient such as personal experiences, sensitivities, health preferences & etc.

muscle Pro Tip Alert!

Just because a product is not free from a common preference does not mean it's a bad product! You can make a personal decision whether or not you want to use a product that contains these ingredients or not - click the labels of the preference to read more about them.

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Quick Product Notes

Click on icons for more information
question
lightbulb What are Notable Effects & Ingredients?

Ever used a product that promised a certain effect but provided no results? It might not have contained any notable ingredients that could have been responsible for that promised effect. It doesn't matter what the marketing or packaging ยซpromisesยป it can do, if it doesn't contain anything that can help - then the likelihood of it helping is low.

We help you identify key notable ingredients that have been shown to help with effects such as acne-fighting, brightening, UV-protection, wound healing & anti-aging to help you achieve your skincare goals smarter. Please note that different notable ingredients have varying levels of research behind them, some are extremely well proven yet some have mixed research in their efficacy.

muscle Pro Tip Alert!

Just because a product doesn't contain any notable ingredients doesn't mean it's bad. And a product with notable ingredients (or even many) doesn't necessarily guarantee the efficacy of the product performing these effects either. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine this.

Be smart and use this as just a starting point for you to make more informed and smarter choices and compare it with reviews to see if the product is right for you

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Notable Effects & Ingredients

anti-aging Anti-Aging from 3 ingredient(s):
Sodium Ascorbyl Phosphate Citric Acid Niacinamide
brightening Brightening from 4 ingredient(s):
Glycerin Sodium Ascorbyl Phosphate Citric Acid Niacinamide
wound Promotes Wound Healing from 4 ingredient(s):
Glycerin Citric Acid Allantoin Niacinamide
ache Ache-fighting from 2 ingredient(s):
Betaine Salicylate Niacinamide
question
lightbulb What are Ingredients Related to Skin Type?

Why are some products great for some people and horrible for others? Well everyone has different skin types and different reactions to the same ingredients.

We've identified a range of ingredients that are commonly regarded as potentially good or bad for those with Dry, Oily/Acne-Prone or Sensitive skin.

muscle Pro Tip Alert!

A product that contains good or bad ingredients for your skin type doesn't always flat out make the entire product good or bad for your skin. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine your skins reaction.

One of the best ways to use this section is to troubleshoot products you've had bad experiences with in the past. Check if it contains any of the marked ingredients to point out suspect ingredients to avoid in the future!

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Ingredients Related to Skin Types

Click on icons for more information
dry-skin Dry Skin
2
oily-skin Oily/Acne-Prone Skin
4
sensitive-skin Sensitive Skin
1
question
lightbulb What is the Ingredient Safety Breakdown?

Ingredient Safety Breakdown refers to the percentage % of ingredients in different risk categories as classified by EWG (Environment Working Group) if they are available. There are almost endless cosmetic ingredients and they are one of the few organisations globally that have assigned ratings to a lot of the more commonly used ingredients which is why we reference them.

muscle Pro Tip Alert!

EWG is seen by many to be more on the alarmist side in their assignment of health ratings resulting in rating ingredients as riskier than they actually are. We recommend using this a reference point rather than a strict guide of ingredient safety and to always do further research if into ingredients that you may find suspect.

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Ingredient Safety Breakdown

EWG Health Ratings
Low risk
Medium risk
High risk
Unknown risk
56% 4% 40%

Product ingredient list

Showing first 5 of 25 ingredients
EWG CIR Ingredient Name & Cosmetic Functions Notes
2 A
Glycerin
Solvent, Perfuming, Fragrance, Humectant, Viscosity Decreasing Agent, Hair Conditioning, Skin Protecting, Denaturant, Skin Conditioning
brightening Brightening
Promotes Wound Healing
Hydrating
1 A
Butylene Glycol
Solvent, Skin Conditioning, Masking, Fragrance, Humectant, Viscosity Controlling, Viscositydecreasing Agent
Hydrating
1 A
Sodium Ascorbyl Phosphate
Antioxidant
brightening Brightening
anti-aging Anti-Aging
Redness
Texture
Pores
0 Unknown
Urea
Humectant, Skin Conditioning, Buffering
Hydrating
Texture
1 Unknown
Betaine Salicylate
Antimicrobial Agent, Exfoliant, Keratolytic
ache Ache-fighting
VIEW ALL INGREDIENTS