The time to take effect of NMN varies from individual to individual, but in general, significant effects can be seen in about a week of taking NMN, and if taken for about a month, the effect will be more significant. However, the specific response time needs to be determined by the individual's age, physical condition, dosage and lifestyle factors.

Not taken for long enough: The effects of NMN are not immediate and take a while to become apparent. If taken for a short period of time, it may not have achieved significant improvement.

Insufficient dose: The effective dose of NMN varies from person to person, and if the dose is taken too low, the desired effect may not be achieved. It is recommended to consult a professional doctor or dietitian to adjust the dosage according to the individual's specific situation.

Individual differences: Each person's physical condition and physiological mechanism are different, so the response to NMN will be different. Some people may not be sensitive to the effects of NMN, or the body is already in a relatively healthy state, so it does not feel obvious.

High expectations: Some people may have high expectations for the effect of NMN, hoping that it will solve all health problems. However, NMN is not a panacea, it can only improve the physical condition to a certain extent, can not solve all problems.

In addition, if the NMN product you take is of poor quality, or there is an interaction with other drugs, it may also affect the effect of NMN.

In fact, the effect of NMN largely depends on the quality of NMN. At present, the NMN products on the market are uneven, and the quality and content of raw materials are different. Even many brands contain almost no NMN.

On the other hand, it is related to personal physique, in practical applications, some people can have obvious body feeling in about 1 week, some people need 2 to 4 weeks or even longer, there will be obvious and relatively insignificant differences in body feeling.

If you do not feel NMN, it is recommended to consider the possible causes in many ways and make adjustments under professional guidance.