While the timeline for experiencing the effects of Tongkat Ali can vary, most individuals tend to report noticing positive changes within 2-4 weeks of starting supplementation. But there are a lot of studies that show differences only becoming noticibly effective after 6-8 weeks.
But, it is also worth noting that most studies and individual reports show Tongkat Ali doesn't work for everyone, so it's likely that if you're not seeing any improvements after 8 weeks, that it's either not going to do much for you, or the dosage you're taking is too low. It should also be noted that some studies around tongkat ali and weight loss suggest a plateau at 6-8 weeks . Although these studies usually involved lower dosages.
Dosages typically range from 100mg-300mg a day, with one study using 400mg showing slightly faster results at the 5 week mark. 
In short, anecodatally many commercial users say that 2-4 weeks is enough to see results, but most scientific evidence conducted in clinical settings shows results from 5 weeks at the earliest and 6-8 weeks on average.
It is important to note that everyone's body is unique, and factors such as individual health, lifestyle habits, and the specific formulation of the Tongkat Ali supplement can influence the timeline. It is also worth noting that there are generally other more consistent herbal compounds for most of the effects proported by Tongkat Ali.
Early Effects of Tongkat Ali
During the initial weeks of supplementation, it is common for individuals to experience increased energy levels. Many users report feeling more energized shortly after taking Tongkat Ali, but most of the evidence for this is anecdotal.
Longer Term Effects of Tongkat Ali
Changes in muscle tone, sexual desire, and other benefits may take longer to manifest. It is important to be patient and consistent with Tongkat Ali supplementation to allow the body to adjust and experience the full range of potential benefits.
How Long Does it Take for Tongkat Ali to Raise Testosterone Levels?
One of the primary reasons individuals turn to Tongkat Ali is its potential to increase testosterone levels. However, the effects of Tongkat Ali on testosterone levels can vary from person to person. Some preliminary research suggests that Tongkat Ali may be able to increase testosterone production after 4 weeks of starting supplementation. However, the results from studies aren't as effective as some other testosterone boosters.
Does Tongkat Ali Really Work?
The effectiveness of Tongkat Ali can vary from person to person, and there is no definitive answer as to whether it will work for everyone. However, many individuals report positive experiences with Tongkat Ali, including increased energy levels, improved stamina, boosted mood, and enhanced mental clarity. These anecdotal reports, along with some scientific studies, suggest that Tongkat Ali may indeed be effective for certain individuals.
Some Tongkat Ali Studies and Their Timelines
Study 1: Effects of Tongkat Ali on Testosterone Levels
In a randomized clinical trial conducted by researchers , the efficacy of Tongkat Ali in increasing testosterone levels was investigated. The study included several groups of men, some of whom were given Tongkat Ali supplementation while others received a placebo. The results showed a significant improvement in total testosterone levels among those who received Tongkat Ali supplementation. This improvement was observed in both healthy volunteers and men with hypogonadism, a condition characterized by low testosterone levels. The dosage was 200mg/day and improvements were marked at 12 weeks
The study also found that Tongkat Ali supplementation had a positive effect on other hormonal parameters, such as sex hormone-binding globulin (SHBG) and dehydroepiandrosterone (DHEA). These findings suggest that Tongkat Ali may help regulate hormone balance and promote overall hormonal health in men.
Study 2: Tongkat Ali and Erectile Function
Another study focused specifically on the effects of Tongkat Ali on erectile function in men with age-related decline in testosterone levels, also known as androgen deficiency of aging males (ADAM). The study included a 6-month intervention period where participants were divided into different groups, some of whom received Tongkat Ali supplementation and others underwent concurrent training. 
The results of this study showed significant improvements in erectile function in both the Tongkat Ali supplementation group and the concurrent training group. However, the most significant improvements were observed in men who received Tongkat Ali supplementation alongside concurrent training. This suggests that Tongkat Ali, when combined with physical exercise, may have a synergistic effect in improving erectile function. Improvements in erectile function were marked at the 2 month point as being ahead of the excersise along group.
Study 3: Tongkat Ali and Muscle Strength
In a study focusing on the ergogenic benefits of Tongkat Ali for elderly individuals, researchers examined the effects of Tongkat Ali supplementation on muscle strength. The study included physically active male and female seniors who were given Tongkat Ali extract daily for 5 weeks. It should also be noted that the supplement dosage was 400mg, meaning it was on the higher side of Tongkat Ali dosages, suggesting that larger doses could work more quickly. 
The results showed a significant increase in muscle strength in both men and women after Tongkat Ali supplementation. This improvement in muscle strength was accompanied by increases in total and free testosterone concentrations. The study also observed a decline in sex hormone-binding globulin concentrations in women, which may have contributed to the increase in free testosterone levels.
Study 4: Tongkat Ali and Drive
Another study on men ageed 35-50 showed that 300mg/day resulted in improvements to all fitness measures after 6 weeks and an improve to "desire" by around 11% on average with in an increase of 14% after 12 weeks. 
Factors Influencing Tongkat Ali's Effectiveness
Several factors can contribute to the effectiveness of Tongkat Ali and the timeline for experiencing its effects. Here are some key factors to consider:
Dosage and Quality of the Supplement - The dosage and quality of the Tongkat Ali supplement can significantly impact its effectiveness. It is essential to choose a reputable brand that offers high-quality Tongkat Ali extracts. Additionally, following the recommended dosage instructions provided by the manufacturer is crucial for optimal results.
Individual Health and Physiology - Each individual's health and physiology play a role in how quickly they may experience the effects of Tongkat Ali. Factors such as age, overall health, hormone levels, and individual metabolism can influence the body's response to the supplement.
Lifestyle Habits - Lifestyle habits, including diet, exercise, and sleep patterns, can also affect the effectiveness of Tongkat Ali. Maintaining a healthy lifestyle that includes regular exercise, a balanced diet, and sufficient sleep can help enhance the supplement's benefits.
Duration of Use - Consistency is key when it comes to Tongkat Ali supplementation. While some individuals may experience noticeable effects within a few weeks, others may require longer periods of consistent use to experience the full range of benefits.
Potential Side Effects of Tongkat Ali
Tongkat Ali is generally well-tolerated and does not appear to cause serious side effects. However, some individuals may experience mild side effects such as headaches, nausea, or diarrhea. It is important to note that Tongkat Ali is likely safe for most people when taken orally for up to four months. However, the long-term safety of Tongkat Ali supplementation is not yet known, and it is advisable to consult with a healthcare professional before considering long-term use.
1 - https://pubmed.ncbi.nlm.nih.gov/21444159
2 - https://pubmed.ncbi.nlm.nih.gov/21671978/
3 - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3669033/
4 - https://pubmed.ncbi.nlm.nih.gov/33541567/
5 - https://pubmed.ncbi.nlm.nih.gov/23754792/
6 - https://pubmed.ncbi.nlm.nih.gov/23243445