TIA’M My Signature Red C Serum 30ml
1,800.00৳ Original price was: 1,800.00৳ .1,500.00৳ Current price is: 1,500.00৳ .
Looking for a high-strength Vitamin C serum for dark spots, post-acne marks, dullness, uneven skin tone, visible pigmentation, and early signs of aging? TIA’M My Signature Red C Serum 30ml is a concentrated Korean antioxidant serum formulated with 20% pure Ascorbic Acid, alongside Ethyl Ascorbyl Ether, Glutathione, Vitamin B12, Sodium Hyaluronate, Panthenol, Green Tea, and Beta-Glucan. The 20% pure Vitamin C concentration makes this a relatively intensive formula better suited to users already comfortable with active skincare rather than a very mild beginner Vitamin C.
The product’s distinctive reddish color comes from Cyanocobalamin (Vitamin B12) rather than artificial red coloring. TIA’M positioned Red C Serum as a more stabilized alternative to its older My Signature C Source, with a focus on pigmentation, skin oxidation, and overall radiance. However, My Signature Red C Serum is now a legacy product and is listed as unavailable or sold out by several major retailers, so Infinity Skincare Solutions should verify the physical stock’s batch, ingredient panel, and expiry date carefully.
| Size | 30 ML |
|---|---|
| Product Type | High-strength pure Vitamin C serum |
| Texture | Lightweight liquid serum |
| Skin Type | acne-prone skin, All Skin Types, Sensitive Skin |
| Skin Concern | Dark spots, dullness, post-acne marks, uneven tone |
| Age Range | Adult, Teenagers |
| Gender | Unisex |
| Ingredient | Ascorbic Acid, Beta-Glucan, Glutathione, Green Tea Extract, Panthenol, Pure Vitamin C, Vitamin B12, Vitamin C Derivatives |
| Product Benefits | Brightening, Intensive antioxidant, pigmentation, radiance support |
| Scent | Fragrance-free |
| Free From | benzoyl peroxide, retinoids, Salicylic Acid |
| Use For | Face |
| Packaging Type | Bottle |
| Made in | Korea |
Shipping & Delivery
-
Inside Dhaka
1-2 Days
70 TK
-
Outside Dhaka
2-3 Days
120 TK
- Cash on delivery available.
- Free 30-Day returns
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Description
About This 20% Pure Vitamin C Serum
TIA’M My Signature Red C Serum is built around:
Ascorbic Acid – 20%
This is pure Vitamin C, not merely a Vitamin C derivative.
The more recent widely published formula contains:
- Ascorbic Acid – 20%
- Ethyl Ascorbyl Ether
- Glutathione
- Cyanocobalamin / Vitamin B12
- Sodium Hyaluronate
- Panthenol
- Green Tea Extract
- Beta-Glucan
- Baikal Skullcap Ferment Filtrate
- Glycerin
- Sodium Lactate.
It also contains:
Alcohol as the third ingredient
and:
Citrus Aurantium Dulcis (Orange) Peel Oil.
That means this product should not be described as:
- alcohol-free,
- essential-oil-free,
- or universally ideal for highly reactive skin.
The formula is intended primarily for:
- hyperpigmentation,
- post-acne discoloration,
- dullness,
- uneven-looking tone,
- loss of radiance,
- and early signs of photoaging.
TIA’M and authorized retailer descriptions also position it around melanin-control and antioxidant care.
Key Benefits of TIA’M My Signature Red C Serum
- Contains 20% Pure Vitamin C
A high concentration of Ascorbic Acid provides intensive antioxidant and brightening care. - Helps Improve the Appearance of Dark Spots
High-strength Vitamin C supports more even-looking pigmentation and a clearer-looking complexion. - Targets Post-Acne Discoloration
The serum can help improve the appearance of flat brown or red post-blemish marks over time. - Contains Glutathione
Adds complementary antioxidant and brightening support to the Vitamin C system. - Contains Vitamin B12
Cyanocobalamin gives the formula its characteristic reddish appearance while providing skin-conditioning support. - Provides Hydration Alongside Brightening
Sodium Hyaluronate, Glycerin, Sodium Lactate, Glucose, and Butylene Glycol help reduce the overly dry feel high-strength Vitamin C can sometimes create. - Includes Soothing Support
Panthenol, Green Tea Extract, and Beta-Glucan provide complementary calming and skin-conditioning benefits. - Provides Antioxidant Protection
Vitamin C, Glutathione, Green Tea, and the additional Vitamin C derivative help support skin against oxidative stress.
Key Ingredients & Their Benefits
| Ingredient | Skin-Care Benefit |
|---|---|
| Ascorbic Acid – 20% | Pure Vitamin C that supports brighter-looking skin, antioxidant defense, uneven-tone improvement, and collagen-related skin support. |
| Ethyl Ascorbyl Ether | Vitamin C derivative that provides complementary antioxidant and brightening benefits. |
| Glutathione | Antioxidant ingredient used to support more even and radiant-looking skin. |
| Cyanocobalamin / Vitamin B12 | Skin-conditioning vitamin responsible for the serum’s characteristic reddish color. |
| Sodium Hyaluronate | Humectant form of Hyaluronic Acid that helps retain moisture. |
| Panthenol | Pro-Vitamin B5 that supports hydration and skin comfort. |
| Green Tea Leaf Extract | Antioxidant botanical that provides complementary soothing support. |
| Beta-Glucan | Hydrating and soothing ingredient useful for stressed-looking skin. |
| Sodium Lactate | Humectant and pH-support ingredient that helps retain moisture. |
| Glycerin | Classic humectant that attracts water to the skin. |
Current Widely Published Ingredient List
The more recent widely published 30ml formula is:
Water, Ascorbic Acid (20%), Alcohol, Sodium Lactate, Glycerin, 1,2-Hexanediol, Ethyl Ascorbyl Ether, Glucose, Butylene Glycol, PEG-60 Hydrogenated Castor Oil, Sodium Hyaluronate, Hydroxyacetophenone, Xanthan Gum, Diethoxyethyl Succinate, Glutathione, Cyanocobalamin, Citrus Aurantium Dulcis (Orange) Peel Oil, Panthenol, Lactobacillus/Scutellaria Baicalensis Root Extract Ferment Filtrate, Camellia Sinensis Leaf Extract, Beta-Glucan.
Important Formula-Version Note
Older ingredient databases show a different Red C Serum formula containing Niacinamide and sometimes other ingredients not found in the later YesStyle formula. One older database lists Niacinamide after Alcohol, while the more recent authorized-retailer ingredient list does not contain Niacinamide.
Therefore, Infinity Skincare Solutions should not universally advertise current Red C Serum stock as a Niacinamide serum unless the actual box/bottle ingredient panel lists Niacinamide.
Why Choose TIA’M My Signature Red C Serum?
A high-potency Korean Vitamin C serum combining 20% pure Ascorbic Acid with Glutathione, Vitamin B12, Hyaluronic Acid, Panthenol, Green Tea, and Beta-Glucan.
- Verified 20% Pure Vitamin C
Uses a clearly disclosed high concentration of Ascorbic Acid. - Targets Uneven Tone & Pigmentation
Designed around visible blemish marks and dark-spot care. - Contains Glutathione
Provides complementary antioxidant support. - Contains Vitamin B12
Adds skin-conditioning care and gives the formula its recognizable red tone. - Includes a Second Vitamin C Form
Ethyl Ascorbyl Ether complements the pure Ascorbic Acid. - Contains Sodium Hyaluronate
Helps maintain hydration. - Contains Panthenol & Beta-Glucan
Supports comfort in an otherwise potent active formula. - Includes Green Tea Extract
Adds further antioxidant support. - No Artificial Red Colorant Claim
Retailer descriptions specifically state that the product contains no artificial coloring. - Made in South Korea
Current product records identify South Korea as the country of origin.
How to Use
| Step | How to Apply |
|---|---|
| Step 1 | Cleanse the face thoroughly. |
| Step 2 | Apply toner and allow excess moisture to settle. |
| Step 3 | Dispense approximately 2–3 drops. |
| Step 4 | Apply evenly over the face, avoiding the immediate eye and lip areas. |
| Step 5 | Apply an additional small amount directly to dark spots if desired. |
| Step 6 | Pat gently until absorbed. |
| Step 7 | Follow with moisturizer. |
| Step 8 | In daytime, finish with broad-spectrum sunscreen. |
Current Bangladesh retailer directions likewise recommend 2–3 drops after cleansing and toning, with an additional layer over blemish marks if desired.
| Usage Guide | Details |
|---|---|
| Best Time to Use | AM or PM |
| Beginner Frequency | Start 2–3 times per week |
| Experienced User Frequency | Increase gradually according to tolerance |
| Routine Order | Cleanser → Toner → Red C Serum → Moisturizer → Sunscreen in AM |
| Amount | Approximately 2–3 drops |
| Targeted Use | Can apply a second thin layer over dark spots |
| Sensitive Skin Tip | Mix 1–2 drops into toner or cream initially if needed; patch test first |
| Daytime Use | Yes, with sunscreen |
| Strong Acid / Retinol Routine | Separate if irritation-prone |
| Storage | Keep tightly closed, away from direct sunlight and excessive air exposure |
YesStyle’s guidance specifically advises storing the serum away from direct sunlight, closing the lid promptly, and limiting excessive air exposure.
Product Specifications
| Specification | Details |
|---|---|
| Brand | TIA’M |
| Product Name | My Signature Red C Serum |
| Verified Size | 30ml |
| Product Type | High-strength pure Vitamin C serum |
| Current Status | Legacy / no longer available through several major retailers |
| Texture | Lightweight liquid serum |
| Color | Red / pink-red due primarily to Vitamin B12 |
| Best For | Dark spots, post-acne marks, uneven tone, dullness, oxidative-stress-related aging concerns |
| Skin Type | Common retailer positioning: all skin types; reactive skin should use caution |
| Age | Teens and adults according to active-skincare experience; no verified official minimum age |
| Gender | Unisex |
| Key Active | Ascorbic Acid |
| Ascorbic Acid Concentration | 20% |
| Product Benefit | Intensive antioxidant, brightening, pigmentation, and radiance support |
| Pure Vitamin C | Yes |
| Vitamin C Derivative | Yes; Ethyl Ascorbyl Ether |
| Glutathione | Yes |
| Vitamin B12 | Yes; Cyanocobalamin |
| Niacinamide | Formula-dependent; absent from the later YesStyle INCI but present in some older ingredient lists |
| Hyaluronic Acid | Yes, as Sodium Hyaluronate |
| Panthenol | Yes |
| Beta-Glucan | Yes |
| Green Tea Extract | Yes |
| AHA | No dedicated AHA treatment identified |
| BHA / Salicylic Acid | No |
| PHA | No |
| Retinoids | No |
| Benzoyl Peroxide | No |
| Alcohol / Ethanol | Yes; Alcohol is third in the later published INCI |
| Essential Oils | Yes; Orange Peel Oil |
| Added Artificial Colorant | Retailer description says no artificial colorants |
| Fragrance / Aromatic Components | Orange Peel Oil is present; do not describe as universally fragrance-free |
| Silicones | Later published formula does not list conventional silicones; older versions may differ |
| SPF | No |
| Free From | Retinoids, Salicylic Acid, Benzoyl Peroxide, and dedicated exfoliating acids are not identified in the later formula |
| Not Free From | Alcohol, Orange Peel Oil, high-strength Ascorbic Acid |
| Sensitive Skin | Use cautiously because of 20% Ascorbic Acid, Alcohol, and Orange Peel Oil |
| Acne-Prone Skin | Can address post-acne discoloration but is not an acne medication |
| Pregnancy & Breastfeeding | No retinoid identified; individual medical advice should take priority |
| Daytime Use | Yes, with sunscreen |
| Night Use | Yes |
| Cruelty-Free | YesStyle currently identifies TIA’M as cruelty-free. |
| Country of Origin | South Korea |
| UPC / EAN | 8809367895128 |
| Price in Bangladesh | ৳1500 |
The GTIN 8809367895128 appears consistently in current historical product records for the 30ml serum.
Important Product Status: Legacy / Discontinued Retail Item
TIA’M My Signature Red C Serum is no longer readily available through several major current retailers.
YesStyle currently states:
“This item is no longer available.”
Other retailers including Mikaela Beauty, Age Tune, Skin Care BD, and EmartWay currently show it as:
sold out / unavailable.
At the same time, a 2025 Brunei Ministry of Health notified-cosmetics list still includes:
TIA’M – My Signature Red C Serum.
Therefore, the safest Infinity Skincare Solutions wording is:
“Legacy TIA’M product; availability depends on remaining authentic stock.”
Before selling older stock, check:
- manufacture date,
- expiry date,
- seal condition,
- bottle color,
- formula appearance,
- and storage history.
Important 20% Vitamin C Note
The product contains:
20% Ascorbic Acid
which means 20% pure Vitamin C.
This is a high concentration.
Do not confuse it with a formula containing:
20% Vitamin C complex
or
20% citrus extract.
The headline concentration specifically refers to Ascorbic Acid.
What Is Ethyl Ascorbyl Ether?
The later formula also contains:
Ethyl Ascorbyl Ether
which is a Vitamin C derivative.
This provides complementary antioxidant and brightening support.
However, TIA’M does not publish its exact percentage.
Do not add its unknown concentration to the 20% Ascorbic Acid and claim a higher total Vitamin C percentage.
Why Is the Serum Red?
The formula contains:
Cyanocobalamin — Vitamin B12.
Vitamin B12 has a naturally red color and contributes to the distinctive appearance of Red C Serum.
Therefore, the red appearance should not automatically be interpreted as artificial dye.
YesStyle specifically lists the product as having:
no artificial colorants.
Does It Contain Glutathione?
Yes.
Glutathione appears in the later published formula.
It provides complementary antioxidant and skin-brightening support.
The exact percentage is not disclosed.
Does It Contain Niacinamide?
This depends on the formula generation.
Some older ingredient databases list:
Niacinamide.
However, the later authorized YesStyle ingredient list does not list Niacinamide.
Therefore, do not permanently publish:
“Contains Niacinamide”
for every bottle.
Check the physical product ingredient panel.
Does It Contain Alcohol?
Yes.
In the later published formula:
Alcohol is the third ingredient, immediately after Water and 20% Ascorbic Acid.
Therefore, this product should not be described as:
alcohol-free.
Users with very dry, sensitized, or barrier-damaged skin should introduce it cautiously.
Is It Fragrance-Free?
A separate Parfum/Fragrance ingredient is not listed.
However, the formula contains:
Citrus Aurantium Dulcis (Orange) Peel Oil.
Orange Peel Oil is aromatic.
Therefore, the safest wording is:
“No separate Parfum is listed, but Orange Peel Oil is present.”
Do not market it as essential-oil-free.
Is It Suitable for Sensitive Skin?
This is a relatively intense formulation because it combines:
- 20% pure Ascorbic Acid,
- Alcohol high in the ingredient list,
- Orange Peel Oil.
While it contains soothing ingredients such as:
- Panthenol,
- Beta-Glucan,
- Green Tea,
- Sodium Hyaluronate,
very sensitive or barrier-damaged skin may still experience:
- tingling,
- dryness,
- burning,
- or redness.
Patch testing is strongly recommended.
Is It Suitable for Beginners?
For most first-time Vitamin C users, 20% pure Ascorbic Acid is a strong starting point.
A beginner may prefer to:
- patch test,
- use 1–2 drops mixed with moisturizer initially,
- start 2–3 times per week,
- increase only if the skin remains comfortable.
TIA’M’s retailer guidance specifically suggests mixing 1–2 drops with toner or cream if the initial tingling is uncomfortable.
Can It Be Used in the Morning?
Yes.
A practical morning routine is:
Cleanser → Toner → Red C Serum → Moisturizer → Broad-Spectrum Sunscreen
TIA’M retailer directions explicitly recommend sunscreen when using the serum before going outside.
Can It Be Used at Night?
Yes.
It can also be used in the evening:
Cleanser → Toner → Red C Serum → Moisturizer
Highly reactive users may prefer nighttime use initially so they can keep the routine simple.
Can It Be Used With AHA or BHA?
TIA’M’s retailer guidance recommends avoiding simultaneous use with products containing high concentrations of AHA or BHA.
This is mainly an irritation-management strategy.
A practical option is:
Vitamin C in the morning
and
AHA/BHA on alternate evenings.
Can It Be Used With Retinol?
Retailer guidance similarly advises avoiding simultaneous use with high-strength Retinol.
A simpler routine is:
AM: Red C Serum
PM: Retinol
or alternating nights according to skin tolerance.
Does It Need Refrigeration?
The available product guidance does not universally require refrigeration.
YesStyle advises:
- store at room temperature,
- keep out of direct sunlight,
- tightly close the lid after use,
- minimize unnecessary air exposure.
Because pure Ascorbic Acid is oxidation-prone, storing the bottle in a consistently cool, dark environment remains important—especially in a hot climate.
If the physical package gives different storage instructions, follow the package.
What If the Serum Changes Color?
Pure Vitamin C can oxidize with exposure to:
- air,
- heat,
- light,
- and time.
YesStyle notes that some formula color degradation can occur after oxygen exposure.
However, because this formula is already naturally red from Vitamin B12, oxidation may be harder to judge purely by color than with a clear Vitamin C serum.
For legacy stock, also monitor:
- expiry date,
- unusual odor,
- separation,
- texture changes,
- leakage,
- or damaged seals.
Pros & Cons
| Pros | Cons |
|---|---|
| Verified 20% pure Ascorbic Acid | Strong concentration may irritate beginners |
| Contains additional Vitamin C derivative | Alcohol is third in the later formula |
| Contains Glutathione | Contains Orange Peel Oil |
| Contains Vitamin B12 | Not essential-oil-free |
| Contains Sodium Hyaluronate | Formula may sting reactive skin |
| Contains Panthenol | Legacy/discontinued retail status |
| Contains Beta-Glucan | Formula versions differ online |
| Contains Green Tea | Niacinamide presence is version-dependent |
| Targets post-acne discoloration | Requires careful storage and air protection |
| Strong antioxidant positioning | No SPF |
| No retinoids | Should be separated from strong acids/retinol if irritation-prone |
| Made in South Korea | Older stock requires careful expiry verification |
TIA’M My Signature Red C Serum 30ml Price in Bangladesh
The TIA’M My Signature Red C Serum 30ml price in Bangladesh varies because the product is now largely legacy stock.
Current or recently indexed Bangladesh listings show:
- ৳1,500 at Age Tune, currently out of stock
- ৳1,700 at Skin Care BD, currently out of stock
- ৳1,700 at EmartWay, currently sold out.
| Price Information | Details |
|---|---|
| Product Name | TIA’M My Signature Red C Serum 30ml |
| Current Price | ৳1500 |
| Regular Price | ৳1800 |
| Bangladesh Market Reference | Approximately ৳1,500–৳1,700 from selected legacy listings |
| Product Status | Legacy / limited remaining stock |
| Availability | In Stock |
| Purchase From | Infinity Skincare Solutions |
| Delivery Area | Across Bangladesh |
| Payment Option | Cash on Delivery Available |
Because this is older stock in many markets, expiry date and storage condition are more important than price alone.
Why Buy from Infinity Skincare Solutions?
Infinity Skincare Solutions provides 100% authentic international skincare products from carefully selected and trusted brands. We help customers throughout Bangladesh choose products according to their skin type, concern, climate, and everyday skincare routine.
When you shop with Infinity Skincare Solutions, you receive:
- 100% authentic international skincare products
- Trusted Korean skincare shopping in Bangladesh
- Carefully selected global skincare brands
- Fast delivery across Bangladesh
- Cash on delivery availability
- Friendly and responsive customer support
- Product guidance based on your skin type and concern
Choose TIA’M My Signature Red C Serum 30ml if you are an experienced active-skincare user looking for a 20% pure Vitamin C serum for dark spots, post-acne discoloration, dullness, and uneven-looking tone, and your stock is within its valid expiry period and has been stored correctly.
FAQs
1. How much Vitamin C is in TIA’M My Signature Red C Serum?
The serum contains 20% pure Ascorbic Acid, making it a high-strength Vitamin C formula.
2. Why is TIA’M Red C Serum red?
The formula contains Cyanocobalamin, also known as Vitamin B12, which has a naturally red color. Retailer information also states that the serum does not use artificial colorants.
3. Does TIA’M Red C Serum contain Glutathione?
Yes. Glutathione appears in the later widely published ingredient list and provides complementary antioxidant and brightening support.
4. Does it contain Niacinamide?
Some older formula listings contain Niacinamide, but the later authorized YesStyle ingredient list does not. Check the ingredient panel on your exact bottle before making this claim.
5. Is TIA’M Red C Serum alcohol-free?
No. Alcohol is the third ingredient in the later published formula.
6. Is it fragrance-free?
There is no separate Parfum listed, but Orange Peel Oil is present, so the formula should not be described as essential-oil-free or universally fragrance-free.
7. Can beginners use TIA’M My Signature Red C Serum?
They can, but 20% pure Vitamin C is relatively strong. Beginners should patch test and introduce the serum slowly rather than starting with daily use.
8. Can I use it with Retinol or AHA/BHA?
Retailer guidance recommends avoiding simultaneous use with high concentrations of AHA, BHA, or Retinol because the combination may increase irritation.
9. Is TIA’M My Signature Red C Serum discontinued?
It appears to be a legacy product. YesStyle lists it as no longer available, while several other retailers currently show it sold out. Remaining authentic inventory may still exist.
10. Where can I buy authentic TIA’M My Signature Red C Serum 30ml in Bangladesh?
You can buy TIA’M My Signature Red C Serum 30ml from Infinity Skincare Solutions if authentic in-date stock is available. Check the product page or contact customer support for current price, batch, expiry date, formula version, storage history, and nationwide delivery.

Mina Akter –
20% Vitamin C হওয়ায় first থেকেই daily use করিনি। সপ্তাহে 2–3 দিন দিয়ে start করেছি, এখন acne marks একটু lighter দেখাচ্ছে।
Aysha Sheikh –
Serumটা strong এবং apply করার সময় mild tingling হয়। Alcoholও আছে, তাই moisturizer আর sunscreen properly use করি।
Arif Chokder –
Red color দেখে প্রথমে artificial color মনে হয়েছিল, পরে জানলাম Vitamin B12 আছে। Dark spot routine-এ ভালো active option।