No, this is not an allergy. Synext is formulated with pure, natural plant extracts and is listed by the TGA.
The flushing, heat, or mild tingling sensation (usually appearing 20 minutes after taking it on an empty stomach) is a normal physiological response known as a Niacin Flush. It indicates that niacin is clearing subcutaneous capillaries and delivering extra blood supply to your cells. This reaction typically subsides on its own within 30 minutes.
As your body repairs itself over time, the flush will gradually diminish. Taking Synext after meals can also reduce this reaction.
No, an absence of flushing does not mean the product is ineffective. The intensity of the flush depends on your individual metabolism and physical condition.
Some users may only experience the flush in areas that require repair after taking it consistently for some time. If you do not experience flushing, pay attention to other positive changes such as improved skin elasticity, higher energy levels, and better sleep quality, which typically become noticeable after about 1.5 months.
Yes, this is completely normal. Synext contains essential B-complex vitamins (particularly Vitamin B2 / Riboflavin). As these water-soluble vitamins are metabolized in the blood, the excess is naturally excreted by the kidneys, which can give urine a brighter yellow or orange tint. It is a harmless metabolic process.
Synext Pro is the 4th-generation, fully upgraded version of the Classic formula.
While the Classic version provides a strong NAD+ boost, the Pro version adds two powerful ingredients: Ginkgolide B (40mg, for microcirculation improvement) and Fenugreek Extract TRG (50mg, for sustained NAD+ release), bringing the total to 24 active ingredients.
Synext Pro also utilizes Smart-Release Technology to maintain NAD+ levels for up to 72 hours. We highly recommend choosing Synext Pro for maximum benefits.
Synext Lite is designed for long-term maintenance. It retains about 80% of the potency of the Classic version but comes in a larger 60-tablet bottle (compared to the Classic’s 30 tablets), offering a more cost-effective daily option.
It is ideal for users who have already completed a full repair cycle (typically 3 bottles of Synext Classic or Pro) and wish to maintain their health. First-time users should start with Classic or Pro.
Yes, it is highly safe. Niacin has been safely used as a standard nutrient and clinical treatment for over 70 years.
The dosage used in clinical settings is typically 2-6 grams per day, which is 20 to 60 times higher than the amount found in one Synext tablet (100mg). Our formulation and dosages strictly comply with Australian TGA regulations, ensuring absolute safety validated by millions of users.
This is a normal phenomenon. Our formulas use natural plant extracts. Depending on seasonal temperatures and air humidity during harvest, the natural colors of these extracts may slightly show through the tablet coating.
Whether the coating looks pure white or slightly yellowish, the quality, safety, and efficacy remain exactly the same. All production lines adhere to strict Australian GMP standards.
As a natural dietary supplement, Synext is compatible with most medications. However, you must leave a 1-hour gap between taking Synext and the following 5 types of medications:
- Euthyrox (Levothyroxine)
- Thyrozol (Thiamazole)
- Aspirin
- Warfarin
- Blood pressure medications (Antihypertensives)
If you are on prescription medication and unsure, please consult your healthcare provider.
Yes, Synext boosts your body's natural enzymes to help break down alcohol. We recommend taking 2 tablets about 20 minutes before drinking (do not exceed 6 tablets per day).
Many users report increased alcohol tolerance and significantly reduced hangover symptoms the next morning.
No. As a general safety standard, we do not recommend any Biogency products during pregnancy or breastfeeding. They are perfectly safe to take when preparing for pregnancy, but you should stop once you become pregnant.
Here is a quick guide to product suitability by age:
Absolutely. Synext acts as a powerful booster that enhances the absorption of other supplements. Here are popular combinations:
We provide a 3-step verification system to guarantee authenticity:
- Customs Traceability Code (Mainland China Only): Located on the bottom of the bottle. Scan via the official China Customs App.
- Laava Secure Fingerprint: Printed on the bottle. Scan using scan.laava.id or the Laava WeChat Mini Program.
- Official Trademarks: Ensure the bottle displays the registered Australian trademarks BIOGENCY and SYNEXT.
Note: Authentic imported Synext products will NEVER feature Chinese text directly printed on the bottle label.
Synext is shipped directly to you from overseas bonded warehouses via cross-border e-commerce, meaning you receive the exact same product sold in Australian pharmacies.
According to Australian TGA regulations, supplement instructions must be printed on the bottle in English. For Chinese instructions, please consult our product pages or customer service.
The letters EXP on the bottle stand for Expiry Date. It is followed by the month and year. For example, EXP 06/27 means the product expires in June 2027.
The personal cross-border shopping limit in China is set at 26,000 RMB per year. Direct-mail products are subject to a comprehensive tax (generally 9.1%). If you initiate a return, you will be responsible for the tax portion, while we cover the loss of the returned goods.
You should strictly avoid taking Synext if you meet any of the following criteria:
- Allergies: You have a known allergy to any of the ingredients listed in the product.
- Severe Liver Conditions: You suffer from severe liver disease.
- Cancer Treatments: You are currently undergoing chemotherapy or radiotherapy.