# TRUST hair serum My Sister for low-porosity hair 40 ml

**URL:** https://aio.lv/en/product--trust-5902539715316--11811136
**Data updated:** 2026-03-09 10:53 (EET)
**Category:** Shower Gels, Shampoos & Deodorants
**Manufacturer:** TRUST
**Manufacturer code:** 5902539715316
**EAN:** 5902539715316
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 9.49 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 7.84 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--trust-5902539715316--11811136

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

TRUST My Sister hair serum is formulated for low-porosity hair and comes in a 40 ml bottle. The lightweight serum targets surface hydration and smoothing without weighing hair down, helping with detangling, frizz control and added shine. Intended for topical use on damp or dry hair to improve manageability and appearance in everyday styling routines.

## Long description

TRUST hair serum My Sister for low-porosity hair 40 ml is a lightweight topical serum designed to improve manageability and surface conditioning of low-porosity hair. Presented in a compact 40 ml bottle, the formula focuses on surface hydration, smoothing and shine without adding weight, making it suitable for daily styling routines. The serum can be applied to damp or dry hair to help with detangling, reducing frizz and enhancing the hair’s visual smoothness.
Advantages
The serum provides targeted surface hydration that does not penetrate and overload low-porosity hair, resulting in a non-greasy finish and preserved volume. It smooths the hair cuticle to reduce friction and tangles while improving light reflection for added shine. Because the formula is lightweight, it supports detangling and frizz control without leaving visible residue or stiffness.
Suitable for
Low-porosity natural, chemically treated or heat-styled hair that resists moisture absorption
Fine or medium hair types that require smoothing without weight
Daily styling routines where detangling and frizz reduction are needed
Key specifications
Volume: 40 ml compact bottle for targeted topical use
Texture: lightweight serum that spreads easily on hair surface
Primary effects: surface hydration, smoothing, detangling, frizz control and shine enhancement
Application: suitable for use on damp or dry hair
Finish: non-greasy, lightweight and non-stiff result preserving natural movement
How to use
Apply a small amount of serum to the palm, rub hands together and distribute evenly through lengths and ends of damp or dry hair. Focus on mid-lengths and tips where tangles and frizz are most common; avoid applying directly to the roots to prevent weighing the hair down. For thicker or coarser sections, use a slightly larger quantity and comb through for even distribution. Style as usual after application.
Usage recommendations
Begin with a minimal dose and increase sparingly as needed to maintain a lightweight finish. Use regularly as part of daily styling to aid detangling and frizz control; combine with a suitable shampoo and conditioner formulated for low-porosity hair for best results.

## FAQ

### How much does the TRUST My Sister hair serum 40 ml cost, and is it available for purchase?

The price is 9.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 14.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All TRUST products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized TRUST service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11811136/67212322_large.webp